WO2007128175A1

WO2007128175A1 - A method and apparatus for displaying, adjusting, analzying the path performance

Info

Publication number: WO2007128175A1
Application number: PCT/CN2006/003410
Authority: WO
Inventors: Wenzhong Fu
Original assignee: Huawei Technologies Co., Ltd.
Priority date: 2006-05-08
Filing date: 2006-12-14
Publication date: 2007-11-15
Also published as: CN1983972A

Abstract

A method and apparatus for displaying, adjusting, analyzing the path performance. A method for displaying path performance includes steps: sending the query request, acquiring the performance data and plotting the graph of the path performance data. A path performance data display apparatus includes: a module for receiving the query request, a module for acquiring the performance, and a module for plotting the graph. The technique scheme of present invention provides a set of graphics management function for the path performance management of the transmission network administration as well as implementing method thereof, the adjusting operation is convenient and high efficiency, the analyzing function has high reference value for the network maintenance field.

Description

Display, adjustment and analysis method and device for path performance

This application claims priority to Chinese Patent Application No. 200610078700.8, entitled "Display, Adjustment, Analysis Method and Device of Path Performance", filed on May 5, 2006, the entire contents of which are hereby incorporated by reference. The citations are incorporated herein by reference.

Technical field

The present invention relates to the field of network transmission, and in particular, to a method, device and apparatus for displaying, adjusting, and analyzing path performance.

Background technique

One of the most important management functions of the transport network management system is the end-to-end management function, that is, the route management. Whether it is the Synchronous Digital Hierarchy (SDH) network, the Synchronous Optical NETwork (SONET) network management, the WDM-Wavelength Division Multiplexer J network management, the optical transport network (OTN-Optical Transport Network) network management , or a comprehensive network management consisting of multiple types of devices, especially network-level network management or subnet-level network management, all require a path management system.

The main management object of the path management system is the end-to-end path, such as the SDH network.

VC4 (VC-Virtual Container), Trailer, VC12 Trail, etc., ODM-Optical Transmission Section Trail, Optical Multiplex Secton Trail, Optical Channel (Och-Optical Channel) Trail, etc., OC48 Trail, OC192 Trail, etc. of SONET network, Odul (Odu-Optical Channel Data Unit) of OTN network, Trail, Odu2 Trail, etc., EPL-Ethemet Private Line, Ether EVPL-Ethemet Virtual Private Line, etc.

The main functions of the path management system include: end-to-end service search and creation functions; end-to-end alarm monitoring and positioning functions; end-to-end performance monitoring and analysis functions. Among them, end-to-end performance monitoring and analysis is one of the most important, very complex and frequently used functional systems. Especially for the WDM network path management system, network operation and maintenance personnel should view and analyze the performance of the WDM path almost every day. data. For example, optical power data of the path, error-like performance data, optical signal to noise ratio (OSNR) data, board/device temperature data, and Ethernet service performance data (for example, packet loss rate). The performance data management functions of the prior art for the end-to-end path are not comprehensive. Some manufacturers' network management does not even have path performance management functions; some manufacturers' network management supports path performance management, but the management functions are not complete. The general implementation features and technical solutions are mainly as follows: For one or more paths selected by the user, you can query The performance data of the NE/board/port that the path passes through can specify the query optical power, error code performance, temperature, and so on. Specifically, for example, see Table 1, which is an example of a path optical power display manner. Path Name: OCH - 1

Table 1

As can be seen from the data in the above list, the performance management function of the path for the prior art is relatively simple, usually only the performance collection function, and does not involve functions such as adjustment capability and analysis capability for the path; for the display mode of the data, Its performance is relatively simple, only preliminary display of the data, and does not systematically and specifically reflect the characteristics of the path, and it is not convenient for the later data to be comparatively analyzed.

Summary of the invention

In order to solve the above problems, the embodiments of the present invention provide a method and apparatus for displaying, adjusting, and analyzing path performance, so that the performance analysis for the path is more detailed and the display is more intuitive.

An embodiment of the present invention provides a method for displaying a path performance, where the method includes: receiving a query request, where the query debt request includes a name of a path to be queried and a performance data type of a detection point on a path to be queried;

Acquiring performance data of the detection point according to the query request, and drawing and displaying a performance graph of the path to be queried in a coordinate system.

Further, an embodiment of the present invention provides a method for adjusting a path performance, where the method includes: selecting, on a performance graph of a path, a graphic corresponding to an object to be adjusted on the path; The control unit adjusts a graphic corresponding to the object to be adjusted on the path by using a graphic operation manner to obtain an adjustment expected value of performance data of the object to be adjusted;

The control unit checks the legality of the adjusted expected value of the performance data, and if the adjusted expected value of the performance data is legal, sends an adjustment instruction to the management device of the object to be adjusted; The adjustment instruction adjusts performance data of the object to be adjusted to an adjustment expectation value of the performance data.

The embodiment of the present invention further provides a method for analyzing path history performance, the method comprising: receiving a path analysis request, where the analysis request includes a name of a path to be analyzed and a historical time period to be analyzed;

And reading the historical performance database according to the analysis request, obtaining historical performance data of the detection points on the path to be analyzed in the historical time period to be analyzed, and drawing and displaying the path to be analyzed in the coordinate system A historical performance analysis graph for the historical time period to be analyzed.

The embodiment of the present invention further provides a path performance display device, where the device includes: receiving a query request module, acquiring a performance data module, and drawing a graphic module, where

The receiving query requesting module is configured to receive a query request, and send the query request to the acquiring performance data module, where the query request includes a name of a path to be queried and a performance data type of a detection point on a path to be queried ;

After receiving the query request, the acquiring performance data module acquires performance data of each detection point, and sends the performance data to the drawing graphic module;

After the drawing graphic module obtains the performance data of each detection point, the performance graphic of the path to be queried is drawn and displayed in the two-dimensional coordinate system.

An embodiment of the present invention further provides a path performance adjustment apparatus, where the apparatus includes: a selection module, an adjustment module, a verification module, and a device execution module;

The receiving analysis request module is configured to select, on a performance graph of the path, a graphic corresponding to the object to be adjusted on the path;

The adjusting module is configured to adjust a graphic corresponding to the object to be adjusted on the path by using a graphic operation manner, and send the obtained adjustment expected value of the performance data of the object to be adjusted to the verification module; The graphic corresponding to the object to be adjusted on the path returns to the state before the adjustment; The verification module verifies the legality of the adjustment expected value of the performance data, and if it is legal, sends an adjustment instruction to the device execution module; if not, sends a recovery instruction to the adjustment module, and the path is The graphic corresponding to the object to be adjusted is returned to the state before the adjustment;

The device execution module is configured to adjust performance data of the object to be adjusted to an adjustment expectation value of the performance data.

An embodiment of the present invention further provides an apparatus for analyzing path history performance, where the apparatus includes: a receiving analysis request module, a data reading module, and a drawing module;

The receiving analysis request module is configured to receive an analysis request, and send the analysis request to the data reading module, where the analysis request includes a name of a path to be analyzed and a historical time period to be analyzed;

The data reading module is configured to read the historical performance database, and obtain historical performance data of each detection point on the path to be analyzed within the historical time period to be analyzed;

And the drawing module draws and displays a historical performance analysis map of the path to be analyzed in the historical time period to be analyzed according to historical performance data of each detection point in a two-dimensional coordinate system.

The beneficial effects of the technical solution of the present invention are: providing a set of graphical management functions and implementation methods for path performance management of the transmission network management, including graphical display, adjustment, analysis, etc. of path performance data; the graphical method is intuitive The performance data is normal/abnormal identification, and the adjustment operation is convenient and efficient. The analysis function is very valuable for network maintenance work.

DRAWINGS

1 is a flowchart of a path performance display method according to an embodiment of the present invention;

2 is a flowchart of a path performance adjustment method according to an embodiment of the present invention;

3 is a flow chart showing a method for analyzing path history performance according to an embodiment of the present invention;

4 is a schematic structural diagram of a path performance display device according to an embodiment of the present invention;

FIG. 5 is a schematic structural diagram of a path performance adjusting apparatus according to an embodiment of the present invention; FIG.

6 is a schematic structural diagram of an apparatus for analyzing path history performance according to an embodiment of the present invention; FIG. 7 is a bar graph of path optical power according to an embodiment of the present invention;

FIG. 8 is a diagram showing a path light power line diagram according to an embodiment of the present invention; FIG.

FIG. 9 is a cross-sectional view of a single-plate temperature histogram and a line graph of a path according to an embodiment of the present invention; Figure

FIG. 10 is a diagram showing a path history performance analysis diagram according to an embodiment of the present invention.

detailed description

The invention is further illustrated by the following figures and examples, but not by way of limitation.

Referring to FIG. 1, an embodiment of the present invention provides a method for displaying path performance, and the method is as follows:

Step 101: The user sends a query request to the control unit, where the query request includes the name of the path to be queried and the performance data type of the detection point on the path to be queried, and the control unit includes a network management system (hereinafter referred to as a network management system) or the like. Ability to tool software for control.

The types of paths to be queried include, but are not limited to, a synchronous digital system path (SDH Trail), a synchronous optical network path (SONET Trail), a wavelength division multiplexing path (WDM Trail), an optical transport network path (OTN Trail), an ether. ETH Trail, ATM Trail, RADIO Trail. The performance data types include, but are not limited to, the optical power of the detection point on the path, the signal to noise ratio, the error type performance, the board temperature, the device temperature, and the packet loss rate.

Step 102: After receiving the query request, the network management system acquires performance data of the detection point.

Step 103: The network tube draws and displays a performance graph of the path to be queried in a coordinate system of two or more dimensions according to the obtained performance data of the detection point.

Taking the path optical power diagram as an example, referring to FIG. 7 and FIG. 8, FIG. 7 is a histogram of path optical power according to an embodiment of the present invention, and FIG. 8 is a line optical power line diagram according to an embodiment of the present invention. The graphic elements of the graph/line graph include, in this embodiment, the coordinate system takes a two-dimensional coordinate system as an example:

1) Two-dimensional coordinate system, scale. The horizontal axis: The power detection port on the path, that is, the NE that can query the power-board-port; for example, NE1-1-M40-1. Vertical axis: Power, vertical axis with scale; eg range -40dB-30dB, density 10dB.

2) Histogram or line chart. The histogram is displayed by default, and each detection point has a cylindrical representation. For the line graph, there is a vertice point for each detection point, and each detection point is sequentially arranged according to the direction of the path. 3) Display the current value of the power, the reference value, the upper and lower thresholds or the reference deviation. The current value is directly indicated on the graph.

4) Legends and options. Options are used to set the baseline deviation, power adjustment step size, and more.

5) Operation buttons: The histogram and line chart support switching and superimposition. Since the path can be very long, there may be many detection points, so the graphics allow the user to zoom out, zoom in, and roam. Graphics support printouts, such as support for HTML, SVG, BMP, JPG, GIF, and more. Taking the board temperature of the path as an example, referring to FIG. 9, FIG. 9 is a superimposed diagram of a single-plate temperature histogram and a line graph of a path according to an embodiment of the present invention, and the histogram and the line graph may be superimposed.

Additionally, the graphics support highlighting path performance anomaly information with a particular color (e.g., orange). There are two ways to determine an exception for each performance checkpoint on the path:

(1) The network management system judges: If the current performance value exceeds the upper threshold (reference deviation), or is lower than the lower threshold (reference deviation), the current value and the corresponding graphic are displayed in red; otherwise, the green color indicates normal.

(2) The network management system checks the current alarm database to see if there is an unfinished performance violation alarm on the detection port. If not, it displays green. If it is, the corresponding color is displayed according to the alarm level (emergency-red, main-orange, General - yellow, hint - purple).

Method (1) is very simple, but the color is not accurate enough. The method (2) shows a more accurate color, but needs to interact with the alarm data, and the implementation process may be complicated. Which scheme is adopted specifically, different network management systems can be determined according to user requirements and network management characteristics, and it is generally recommended to adopt the scheme (1).

Referring to FIG. 2, another embodiment of the present invention further provides a method for adjusting path performance, where the method steps are as follows:

Step 201: Select a graphic corresponding to the object to be adjusted on the path on the performance graph of the path. Step 202: The network management adjusts a graphic corresponding to the object to be adjusted on the path by using a graphic operation manner to obtain performance data of the object to be adjusted. Adjustment expectation value;

Step 203: The network management checks the validity of the adjustment expected value of the performance data, and if so, sends a corresponding adjustment instruction to the management device of the object to be adjusted; if not, returns to step 202;

Step 204: The management device of the object to be adjusted performs the adjustment instruction, and the to-be-tuned The performance data of the section object is adjusted to the adjusted expected value of the performance data, and the execution result is fed back to the network management.

In the performance graph of the path, the user is allowed to adjust the performance data of some detection points. There is a premise that the adjustable performance data is limited, for example, the power can be adjusted, but the error type performance cannot be adjusted, or It is meaningless to say that the error class performance adjustment. Therefore, it is necessary for the network management to verify the legality of the adjustment expected value of the performance data, and the specific steps are as follows:

If the adjusted expected value of the performance data is between the upper and lower thresholds, within the upper and lower reference deviation ranges, and/or the numerical change amount before the relative adjustment is within a predetermined range, the network management determines that the adjustment expected value of the performance data is legal. Otherwise, the network management determines that the adjustment expectation value of the performance data is invalid.

If the adjustment expected value of the performance data is invalid, the network management returns a graphic corresponding to the object to be adjusted on the path to a state before the adjustment, and displays to the user that the adjustment expected value of the performance data is illegal. .

In order to further adapt to the situation that the user misoperation or the performance data is no longer needed in the actual operation, the function of canceling the operation is added: After the graphic corresponding to the object to be adjusted on the path is adjusted, the network management device receives the cancellation operation instruction of the user. Returning the graphic corresponding to the object to be adjusted on the path to the state before the adjustment.

Since the object to be adjusted on the path is often not isolated, the performance data of a certain object to be adjusted often changes the performance data of a series of related detection points on the path. Therefore, the following prompt function is added to remind the user to pay attention to: After receiving the execution result of the feedback, the network management device displays to the user the prompt information that the performance data of the detection point related to the object to be adjusted changes.

Taking the power of the adjustment path as an example, the operation procedure of the path performance adjustment is as follows:

1) In the path power graphic interface, click the mouse to select the power column or line chart to be modified. Then the power column or vertices are highlighted or flashed to indicate that they are selected.

2) The user sets the step size for adjusting the power, the range is O.ldB-ldB, and the default is 0.5dB.

3) The user clicks the button "Add" or "Reduce" below the graph, and the power column increases or decreases accordingly.

The magnitude of each increase or decrease is the above step size. The user can click multiple times, and finally the user clicks the "Apply," button. If the user clicks "Add" or "Reduce" and then does not want to change after 3⁄4, click the "Cancel" button, and the power column of the network management interface is restored. The height before the modification, and Exit is selected.

4) The validity of the network management check data, the power can not exceed the upper and lower thresholds, and can not exceed the upper and lower reference deviations, and also check the magnitude of the power change (the difference between the user input value and the original value), the change amount can not be greater than a specific value (such as ldB , more than ldB may damage the laser). If the data is valid, the device will be delivered directly, otherwise it will not be sent, so that the user can reset it.

5) After receiving the command to adjust the power, the device performs the operation of adjusting the power.

6) The device returns the execution result to the NMS.

7) If the setting is successful, the NMS prompts the user to "set the power successfully. This operation will affect the optical power of the downstream site. It is recommended to query the downstream optical power". If the setting is unsuccessful, the device returns "Optical power adjustment failed or does not support optical power adjustment". Then, the power column of the network management interface is automatically restored to the height before the modification, and the selected state is exited.

The performance graph of the path not only reflects current performance data, but can also be used to analyze historical performance. There is a premise that the network management system has saved a certain amount of historical performance data, otherwise there is no object of analysis and comparison. Referring to FIG. 3, another embodiment of the present invention further provides a method for analyzing historical performance of a path, where the method steps are as follows:

Step 301: The user sends an analysis request to the network management, where the analysis request includes a name of the path to be analyzed and a historical time period to be analyzed.

Step 302: The network management system reads the historical performance database, and obtains historical performance data of the detection points on the path to be analyzed in the historical time period to be analyzed.

Step 303: The network management device draws and displays a historical performance analysis graph of the path to be analyzed in the historical time period to be analyzed according to the historical performance data of the detection point in a two-dimensional coordinate system. The network management determines the number of performance data in the time period. If it is not more than 10, draw a line chart of the performance data directly on the graph, that is, the maximum and minimum performance data of each detection point on the calculation path of the network management system. , the average, and then draw on the graph to get 3 polylines: path performance maximum polyline, minimum polyline, average polyline. Here, the line chart is compared to the histogram, usually using a line chart.

Taking the path optical power map as an example, referring to FIG. 10, FIG. 10 is a schematic diagram of path history performance analysis according to an embodiment of the present invention, and the graphical elements of the path history performance analysis diagram include:

1) Two-dimensional coordinate system, scale. Horizontal axis: The power detection port on the path, that is, the power can be queried. NE-board-port; for example, NE1-1-M40-1. Vertical axis: Power, vertical axis with scale; for example, range -40dB - 30dB, density 10dB.

2) Line chart. Each detection point has a vertice point, and each detection point is sequentially arranged according to the direction of the path.

3) If the historical performance data is small, draw a polyline for each piece of data; if there is more data, draw the maximum value polyline, the maximum polyline, and the average polyline of the historical data. The average value is directly indicated on the graph. In this embodiment, due to the large amount of data, the path performance maximum line, the minimum line, and the average line are drawn.

4) Legend, which shows the meaning of the graphic.

5) Operation buttons: Graphics allow to zoom out, zoom in, and roam; Support printout graphics, such as HTML, SVG, BMP, JPG, GIF, etc.

Referring to FIG. 4, an embodiment of the present invention further provides a path performance display apparatus, where the apparatus includes: a receiving query request module 1, an acquisition performance data module 2, and a drawing graphic module 3, wherein

The receiving query request module 1 is configured to send a query request to the acquisition performance data module 2, where the query request includes a name of a path to be queried and a performance data type of a detection point on the path to be queried;

After the acquisition performance data module 2 receives the query request, the performance data of the detection point is obtained and sent to the drawing graphic module 3;

After the drawing graphic module 3 obtains the performance data of the detection point, the performance graphic of the path to be queried is drawn and displayed in the two-dimensional coordinate system.

Referring to FIG. 5, an embodiment of the present invention further provides a path performance adjustment apparatus, where the apparatus includes: a selection module 4, an adjustment module 5, a verification module 6, and a device execution module 7, wherein

The selecting module 4 is configured to select a graphic corresponding to the object to be adjusted on the path on the performance graph of the path;

The adjustment module 5 is configured to adjust a graphic corresponding to the object to be adjusted on the path by using a graphic operation manner, and send the obtained adjustment expected value of the performance data of the object to be adjusted to the verification module 6; The graphic corresponding to the object to be adjusted on the path is returned to the state before the adjustment; the verification module 6 checks the legality of the adjustment expected value of the performance data, if legal, And sending an adjustment instruction to the device execution module 7; if not, sending a recovery instruction to the adjustment module 5, returning a graphic corresponding to the object to be adjusted on the path to a state before the adjustment; The module 7 is configured to adjust performance data of the object to be adjusted to an adjustment expectation value of the performance data.

The display device 8 is further configured to display prompt information that the adjustment expected value of the performance data is illegal, or prompt information that changes performance data of the detection point related to the object to be adjusted on the path.

Referring to FIG. 6, an embodiment of the present invention further provides an apparatus for analyzing path history performance, where the apparatus includes: a receiving analysis requesting module 10, a data reading module 11, and a drawing module 12, wherein the receiving analysis requesting module 10 Sending an analysis request to the data reading module 11, the analysis request including a name of a path to be analyzed and a historical time period to be analyzed;

The data reading module 11 is configured to read the historical performance database, and obtain historical performance data of the detection points on the path to be analyzed within the historical time period to be analyzed;

The drawing module 12 draws and displays a historical performance analysis map of the path to be analyzed in the historical time period to be analyzed according to the historical performance data of the detection point in a two-dimensional coordinate system.

The preferred embodiments of the invention have been described in detail by way of example only, and those of ordinary skill in the art will recognize that various modifications of the invention can be made without departing from the spirit and scope of the invention.

Claims

Rights request

A method for displaying a path performance, the method comprising:

Receiving a query request, where the query request includes a name of a path to be queried and a performance data type of a detection point on a path to be queried;

2. A method for displaying a path performance according to claim 1, wherein: the performance graph of the path to be queried is sequentially arranged according to the direction of the path.

The method for displaying a path performance according to claim 1, wherein: the performance data type of the detection point on the path to be queried includes optical power, signal to noise ratio, error code performance, and a board. Problem, device temperature, packet loss rate.

The method for displaying a path performance according to claim 1, wherein the performance pattern of the path to be queried is a histogram or a line graph.

The method for displaying a path performance according to claim 1, wherein the method further comprises: when detecting that the performance data of the detection point is abnormal, on a performance graph of the path to be queried Anomalous performance data is indicated by an alarm color and/or an alarm font.

The method for displaying a path performance according to claim 1, wherein the type of the path to be queried comprises a synchronous digital system path, a synchronous optical network path, a wavelength division multiplexing path, an optical transmission network path, Ethernet path, asynchronous transfer mode path, radio communication path.

A method for adjusting path performance, characterized in that the method comprises:

Selecting a graphic corresponding to the object to be adjusted on the path on the performance graph of the path; the control unit adjusts the graphic corresponding to the object to be adjusted on the path by using a graphic operation manner to obtain an adjustment expected value of the performance data of the object to be adjusted ;

The adjusting method according to claim 7, wherein the step of the control unit verifying the legality of the adjusted expected value of the performance data specifically includes: The control unit determines an adjustment expectation value of the performance data if an adjustment expectation value of the performance data is between upper and lower thresholds, within an upper and lower reference deviation range, and/or a numerical variation amount before relative adjustment is within a predetermined range. Legally; otherwise, the control unit determines that the adjustment expectation value of the performance data is illegal.

The adjustment method according to claim 7 or 8, wherein the method further comprises: if the adjustment expected value of the performance data is invalid, the control unit corresponding to the object to be adjusted on the path The graph returns to the state before the adjustment, and displays to the user the prompt information that the adjustment expectation value of the performance data is illegal.

The adjustment method according to claim 7, wherein the step of adjusting the graphic corresponding to the object to be adjusted on the path by the graphic operation method further comprises:

After adjusting the graphic corresponding to the object to be adjusted on the path, the control unit receives the cancel operation instruction of the user, and returns the graphic corresponding to the object to be adjusted on the path to the state before the adjustment.

The adjustment method according to claim 7 or 8, wherein after the performance data of the object to be adjusted is adjusted to the adjusted expected value of the performance data, the method further comprises: feeding back to the control unit As a result, the user is prompted to display the prompt information of the performance data of the detection point related to the object to be adjusted on the path.

12. A method of analyzing historical performance of a path, the method comprising: receiving a path analysis request, the analysis request including a name of a path to be analyzed and a historical time period to be analyzed;

And reading the historical performance database according to the analysis request, obtaining historical performance data of the detection points on the path to be analyzed in the historical time period to be analyzed, and drawing and displaying the path to be analyzed in the coordinate system A historical performance analysis graph of the historical time period to be analyzed.

The method for analyzing path history performance according to claim 12, wherein: the historical performance analysis map is a line graph.

A path performance display device, comprising: a query query request module (1), an acquisition performance data module (2), and a drawing graphics module (3), wherein the receiving query request module ( 1) for receiving a query request, and sending the query request to the acquisition performance data module (2), where the query includes a name of a path to be queried And the performance data type of the detection point on the path to be queried;

After receiving the query request, the acquiring performance data module (2) acquires performance data of each detection point, and sends the performance data to the drawing graphic module (3);

After the drawing graphics module (3) obtains the performance data of the detection points, the performance graphics of the path to be queried are drawn and displayed in the coordinate system.

A path performance adjusting device, characterized in that the device comprises: a selection module (4), an adjustment module (5), a verification module (6) and a device execution module (7);

The selecting module (4) is configured to select, on a performance graph of the path, a graphic corresponding to the object to be adjusted on the path;

The adjustment module (5) is configured to adjust a graphic corresponding to the object to be adjusted on the path by using a graphic operation manner, and send the obtained adjustment expected value of the performance data of the object to be adjusted to the verification module (6) And is further configured to return a graphic corresponding to the object to be adjusted on the path to a state before the adjustment;

The verification module (6) verifies the legality of the adjustment expected value of the performance data, and if it is legal, sends an adjustment instruction to the device execution module (7); if not, sends a recovery instruction to the adjustment a module (5), returning a graphic corresponding to the object to be adjusted on the path to a state before the adjustment;

The device execution module (7) is configured to adjust performance data of the object to be adjusted to an adjustment expectation value of the performance data.

The path performance adjusting device according to claim 15, wherein the device further comprises a display device (8) for displaying prompt information that the adjustment expected value of the performance data is illegal or the path and The prompt information of the performance data of the detection point related to the object to be adjusted changes.

17. An apparatus for analyzing historical performance of a path, the apparatus comprising: a receiving analysis request module (10), a data reading module (11), and a drawing module (12);

The receiving analysis request module (10) is configured to receive an analysis request, and send the analysis request to the data reading module (11), where the analysis request includes a name of a path to be analyzed and a historical time period to be analyzed ;

The data reading module (11) is configured to read a historical performance database, and obtain the desired score The historical performance data of each detection point on the path to be analyzed in the historical time period of the analysis; the drawing module (12) draws and displays the desired analysis in the coordinate system according to the historical performance data of each detection point The historical performance analysis graph of the path within the historical time period to be analyzed.