CN207689666U - Car backing sensor tests system - Google Patents

Abstract

The utility model provides a kind of car backing sensor test system, including controller, test device, power plant, controller is electrically connected with power plant and test device respectively, enable controller to control power plant and mechanical movement occurs, and controller control test device test and obtains feedback data from test device；Test device is installed with the pedestal of fixed sensor to be measured；Power plant is oppositely arranged with the pedestal and is fixedly connected with test device, and power plant one end is connect with test device, when so that power plant being controlled by controller, power plant can push the test device, so that the relatively described pedestal of test device is subjected to displacement, realizes the contraposition grafting of test device and the sensor to be measured being fixed on the pedestal.Farthest reducing manual type leads to inefficiency and the not high problem of grafting precision, improves test yield and testing efficiency, reduces the damage problem of connector caused by manual type and radar for backing car.

Description

Car backing sensor tests system

Technical field

The utility model is related to test and technical field of vehicle more particularly to a kind of car backing sensor test system.

Background technology

Radar for backing car full name is also " parking assist apparatus " " reverse collision prevention radar ", when being automobile parking or reversing Safety aid.It can with sound or more intuitive display the case where informing driver's peripheral obstacle.It relieves and drives Caused puzzlement is all around visited when the person of sailing parks, moves backward and start vehicle, and driver is helped to clear away blind area With the defect of blurred vision, the safety of driving is improved.

It is therefore desirable to during producing radar for backing car, functional test be carried out to radar for backing car, to prevent from not being inconsistent During the radar for backing car of standardization comes into the market, the safety driven is influenced, however in current production, frequently with artificial mode The connector of test and radar for backing car grafting are aligned, not only efficiency is low, but also grafting merging precision is not also high, influences to test good Rate, while during manual work, it is also possible to lead to the damage of connector or radar for backing car.

Utility model content

The purpose of the utility model is to provide a kind of novel car backing sensors to test system, is not increasing production cost While, utmostly reducing manual type leads to inefficiency and the not high problem of grafting precision, improves test yield, reduces The damage problem of connector caused by manual type and radar for backing car.

To achieve the goals above, the utility model provides following technical scheme：

A kind of test system of car backing sensor, includes the control for executing the car backing sensor described in aforementioned any one Device processed, test device, power plant, the test device and the power plant are electrically connected respectively with the controller and by institute The control of controller is stated, the power plant is fixedly connected with the test device, and described power plant one end is filled with test Set connection so that the power plant can be controlled by the controller, occur mechanical movement so that test device be fixed on Sensor to be measured on pedestal realizes contraposition grafting, and the test device sends test instruction for receiving controller, and to institute The test data after controller feedback test is stated, the fixed sensor to be measured is installed in the test device and is filled with power Set opposite pedestal.

Further, the test device includes testboard, generation mechanical movement can be driven to realize by the power plant With the connector of the sensor to be measured contraposition plug, the power plant and the pedestal are opposite and be respectively and fixedly installed to institute It states on testboard, the connector is oppositely arranged with the pedestal.

Further, the connector is connected with the power plant by slide-bar, and the power plant, which is provided with, to be used for The slide opening of the slide-bar sliding.

Further, the connector is provided with the detection for acquiring feedback data with the sensor junction to be measured Device.

Further, the emergency switch being electrically connected with the power plant is provided on the testboard.

Further, finite place piece is set on the pedestal, and the locating part is for limiting and fixing the sensing to be measured Device.

Preferably, it is realized and is electrically connected by USB-CAN between the controller and the test device.

Preferably, the power plant is double cylinder Two axle drive structures.

Compared with prior art, the embodiment of the utility model has the following advantages：

1, the test system of a kind of car backing sensor provided by the utility model, controller control power plant and machinery occur Movement so that the test device being connect with described power plant one end and the sensor to be measured being fixed on pedestal realize that contraposition is inserted It connects；According to project to be tested, the controller sends test instruction to the test device, wherein having accessed controller so that Controller can control other devices, realize that the automatic detection to car backing sensor, controller can also obtain anti-after testing Data are presented, the project to be tested includes：Sensitivity width, remained shock, echo height；The controller parses the feedback coefficient According to, judge whether sensor to be measured meets established standards, further, standard be set in the controller, by numerical value comparison sentence The inspection result of disconnected car backing sensor, improves the accurate rate of inspection, reduces the accidental error in examining, and improves reversing sensing The yield rate of device detection avoids artificial mode from influencing the precision and right of connector and car backing sensor grafting docking and detection The damage of detection device and car backing sensor (radar for backing car) has been saved time cost and economic cost in production, has been improved The efficiency of detection, while controller can also realize the analysis to test data, in the case where excessively not increasing device, realize Automatic detection and data analysis.

2, the test method of a kind of car backing sensor provided by the utility model uses the connection of USB-CAN transmission lines and connects Connect device and controller so that it is anti-after testing that controller can carry out sending and receiving for test instruction by USB-CAN transmission lines Data are presented, connecting line is reduced, save economic cost, and simplify the connection type of controller and test device.

The additional aspect of the utility model and advantage will be set forth in part in the description, these will be from following description In become apparent, or recognized by the practice of the utility model.

Description of the drawings

The utility model is above-mentioned and/or additional aspect and advantage from the following description of the accompanying drawings of embodiments will Become apparent and is readily appreciated that, wherein：

Fig. 1 is a kind of structure chart of the test system of car backing sensor of the present invention；

Fig. 2 is a kind of vertical view of the test system of car backing sensor of the present invention, basically illustrate power plant, pedestal, The relative position of testboard and connector；

Fig. 3 is a kind of left view of the test system of car backing sensor shown in Fig. 2.

Specific implementation mode

The embodiments of the present invention are described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning Same or similar element or element with the same or similar functions are indicated to same or similar label eventually.Below by ginseng The embodiment for examining attached drawing description is exemplary, and is only used for explaining the utility model, and cannot be construed to the utility model Limitation.

A kind of test system of car backing sensor, as shown in Figure 1 to Figure 3, including is used to execute described in aforementioned any one The controller 10 of car backing sensor, test device 20, power plant 30, the test device 20 and the power plant 30 are divided It is not electrically connected with the controller 10 and by the control of the controller 10, the power plant 30 is solid with the test device 20 Fixed connection, and 30 one end of the power plant is connect with test device 20 so that the power plant 30 can be by the controller Mechanical movement occurs for 10 control so that test device 20 and the sensor to be measured being fixed on pedestal realize contraposition grafting, institute It states test device 20 and sends test instruction for receiving controller 10, and to the test number after 10 feedback test of the controller According to being installed with the fixed sensor to be measured and the pedestal 40 opposite with power plant 30 in the test device 20.

Specifically, as shown in Figure 1, the test system of the car backing sensor further includes barrier 60, the testboard 201 Distance close to the side of the barrier 60 to the barrier is 1.45m~1.65m, it is preferable that the distance is 1.55m, the barrier 60 are PVC, and the power plant is fixedly connected with the test device 20, so that the power plant When being started generation mechanical movement by the control that controller 10 controls, only push to test device 20 is connect with 30 one end of power plant A part be subjected to displacement, avoid power plant from being moved in test device 20, further, in order to make test fill It sets 20 and accurately aligns grafting with power plant 30, pedestal 40 is fixedly provided in the test device 20, the pedestal 40 will wait for Survey sensor to be fixedly mounted, and limit it in contraposition grafting or move during pulling out, cause sensor to be measured and/or The damage of test device 20, further, the sensor to be measured be equipped with plug connector, the test device by thimble with it is described Sensor contacts to be measured, and realize the electric connection automatically controlled, to send test life to test device 20 in controller 10 When enabling, the process that test device 20 can detect sensor to be measured on barrier 60 carries out functional test, for the ease of detection and side Just car backing sensor is placed and simulates to the height on ground, and the testboard is placed on carrying platform 70.

Further, as shown in Figures 2 and 3, the test device 20 include testboard 201, can be by the power plant 30 drive the connector 202 for occurring that mechanical movement is realized and the sensor contraposition to be measured plugs, the power plant 30 and institute It states pedestal 40 relatively and is respectively and fixedly installed on the testboard 201, the connector 202 is opposite with the pedestal 40 to be set It sets.

In order to keep the structure that power plant 30, pedestal 40 and test device 20 are always constituted small as far as possible, the survey It includes testboard 201 that trial assembly, which sets 20, so that power plant 30 and pedestal 40 can be installed and be fixedly mounted on testboard 201, be avoided For power plant 30 when being made mechanical movement by the control of controller 10, sensor to be measured and power plant 30 are in testboard 201 It is upper to move, it avoids to carry out accurately aligning grafting or pull out, and treated in contraposition grafting or during pulling out The damage of sensor and test device 20 is surveyed, in addition, sensor test barrier to be measured for convenience, 30 He of the power plant The pedestal 40 is separately positioned on the edge opposite with the barrier 60 of the testboard 201, the pedestal 40 and described dynamic Power apparatus 30 installs the same side with the testboard 201, and the sensor to be measured is limited in pedestal 40 far from the obstacle The side of object 60, further, in 30 one end of the power plant, the connector 202 of the test device 20 of setting, described Detection device is provided in connector 202, the test system of car backing sensor further includes barrier 60, and the detection device is used for It acquires the sensor to be measured and detects the data generated during the barrier, be provided in the testboard 201 controlled Test board device 10 processed control and be electrically connected with the connector 202, the test board by controller 10 control when, to The connector 202 sends signal, so that connector 202 continues or stops data collection, and then realizes controller 10 to surveying Trial assembly set 20 and power plant 30 automatically control, save the time cost and cost of labor for detecting sensor to be measured.

Further, as shown in Figures 2 and 3, the connector 202 and the power plant 30 are connected by slide-bar 301 It connects, the power plant 30 is provided with the slide opening slided for the slide-bar 301.

Further, as shown in figure 3, the power plant 30 is double cylinder Two axle drive structures, therefore the connector It is connected by slide-bar 301 between 202 and the power plant 30, and is additionally provided with for the slide-bar in the power plant 30 The slide opening of 301 slidings, in order to which controller 10 is when controlling the cylinder downlink of power plant 30, cylinder pushes slide-bar that position occurs It moves so that slide-bar 301 can further band movement connector 202 be subjected to displacement, and be moved to the sensor to be measured.

Further, the connector 202 is provided with the sensor junction to be measured for acquiring feedback data The detection device of detection device, the specific acquisition feedback data is sensor.

Further, as depicted in figs. 1 and 2, it is provided on the testboard 201 and is electrically connected with the power plant 30 Emergency switch 50.In order in emergency, avoid the damage of sensor and/or connector 202 to be measured, the testboard It is provided with emergency switch 50, the position that the emergency switch is located at any position of the testboard 201 or is touched convenient for people, In order in emergency, pinning after emergency switch, it can be achieved that stopping or start power plant 30 continues mechanical movement, or Person realizes that the test board for stopping or starting test device 20 continues to test, it is preferable that the emergency switch 50 is located at institute State the side of testboard 201 or the one side of the installation pedestal 40 and power plant 30.

Further, as shown in Fig. 2, finite place piece 401 is arranged on the pedestal 40, the locating part 401 is for limiting And the fixed sensor to be measured, preferably, the locating part 401 is fixture, is easily installed or dismantles the biography to be measured Sensor.

Preferably, as shown in Figure 1, electrically being connected by USB-CAN realizations between the controller and the test device It connects.As it was noted above, controller 10 is in order to realize the transmission of data and order between test device 20,10 He of the controller It is realized and is electrically connected by USB-CAN between the test device 20, and divided in the controller 10 and the test device 20 It is not provided with USB or CAN interface.

Preferably, as shown in Figures 2 and 3, the power plant 30 is double cylinder Two axle drive structures.

It is described as before, the power plant 30 mainly using double cylinder Two axle drive structures, ensures mechanical movement Stability in the process, in other implementations, the power plant 30 can also be single cylinder single shaft driving structure.

Further, the test system of a kind of car backing sensor provided by the utility model, testing procedure include S100 extremely S300。

S100：Controller controls power plant and mechanical movement occurs so that the test being connect with described power plant one end Device and the sensor to be measured being fixed on pedestal realize contraposition grafting.

When being tested, the controller sends order to the power plant for executing mechanical movement, is connect in power plant When receiving order, mechanical movement can be executed, power plant execution mechanical movement, which essentially consists in, will be connected to power plant one end Test device connect with the sensor to be measured so that sensor to be measured and the test device are electrically connected, further, Power plant is aligned in executing Machine Movement Process so that sensor to be measured and test device energy precise positioning, and Mechanical movement, when test device and sensor to be measured are electrically connected, can accurately with sensor grafting, and the sensing to be measured Device is to be fixed on pedestal, is avoided when aligning grafting, and the mechanical movement of power plant pushes the sensor to be measured that position occurs It moves, grafting is accurately positioned to not realize, the sensor to be measured or the test device is caused to damage, specifically, The power plant is the double cylinders of twin shaft, and there is the sensor to be measured connector, controller to control the double cylinder downlinks of twin shaft, make The thimble for obtaining shaft end is capable of the connector of contact measured sensor, and controller can also realize thimble and biography to be measured in the process The contraposition and grafting of sensor.

S200：According to project to be tested, the controller sends test instruction to the test device, after obtaining test Feedback data, the project to be tested include：Sensitivity width, remained shock, echo height.

It in order to understand the accuracy of sensor to be measured, is being tested, is being fixed with the test for sensor function to be measured Project includes mainly：Sensitivity width, remained shock, echo height.Sensitivity refers to that certain method changes unit quantity test substance Caused response quautity variation degree, it can use the ratio between response quautity or other indicatrixs and amount of corresponding test substance of instrument To describe.Sensitivity also refers to the measured ability of apparatus measures minimum.The minimum surveyed is smaller, and the sensitivity of the instrument is just It is higher；Sensor is after oscillation stops, because of the effect of inertia, circuit can also work a period of time, can receive circuit to power supply Generate certain influence.Since control section has been switched off, as time increases, which can be more and more weaker, this process is just Cry remained shock；Echo height is wave amplitude；Three influence sensor detection barriers are simultaneously between measurement sensor and barrier Distance, further, test event further include any one or multinomial following project：Oscillator calibration, adjustment of sensitivity, reading The ID of sensor to be measured is taken, according to test event, is after test event is determined, controller just sends to test device and tests Instruction so that test device can be acquired with test event to corresponding data, and further, controller can pass through USB- CAN to test device send test instruction, can also by USB-CAN from test device obtain test after feedback data, It is achieved in order to record feedback data, or feedback data is calculated for other.

S300：The controller parses the feedback data, judges whether sensor to be measured meets established standards.

In step s 200, after controller gets the feedback data of test device feedback, feedback data is parsed It calculates, determines the data after parsing whether in predetermined threshold value, and then judge whether sensor to be measured meets established standards, or Data result and the range of standard value or standard value after parsing are compared, and then judge whether the sensor to be measured accords with Established standards are closed, the resolving is parsed according to the algorithm of bottom setting, real on the basis of step S100 to S300 Show the process to car backing sensor full-automatic testing, improves the accurate rate of inspection, the yield rate of car backing sensor detection, inspection The efficiency of survey avoids artificial mode from influencing the precision of connector and car backing sensor grafting docking and detection, and is filled to detection The damage with car backing sensor (radar for backing car) is set, time cost and economic cost in production have been saved.

Specifically, when carrying out the parsing of remained shock data, underlying process is：

Judge EEP parameters, EEP parameters are then write when inconsistent with setting value；

Write Threshold cmd；

Write Meas cmd；

SEND_A three times, shake mean value by complementation.

When being parsed into line sensitivity width data, underlying process is：

Judge EEP parameters, EEP parameters are then write when inconsistent with setting value；

Write Threshold cmd；

Write Meas cmd；

SEND_A three times, seeks sensitivity width mean value.

After obtaining the width value of sensitivity, when the sensitivity of sensor to be measured is adjusted, underlying process is：

Judge EEP parameters, EEP parameters are then write when inconsistent with setting value；

Write Threshold cmd；

Write Meas cmd；

Set G_DIG=41；

Measurement sensitivity width three times, if width is bigger than normal to turn G_DIG (such as subtracting 1) down, if width is less than normal to tune up G_DIG (such as Add 1), remeasures sensitivity.

ID is read as, and ID channel mask values are read in controller request, are read successfully then in the upper display mark of controller CSTA。

Specifically, echo height directly acquires measured value.

Threshold above-mentioned is threshold value, and Meas is sensor, and it is to read setting threshold value to write Threshold cmd, is write Meas cmd are to read sensor to be measured.

Further, the feedback data is parsed in the controller, judges whether sensor to be measured meets established standards Step S300 after, including S310.

S310：Mechanical movement occurs for the controller control power plant, so as to connect with described power plant one end Operation is pulled out in the test device and the sensor to be measured realization being fixed on the pedestal, specifically, controller controls power Double cylinder uplinks of device, in order to pull out the connector of thimble and sensor to be measured.

After completing test event above-mentioned, controller sends to power plant and orders so that machine occurs for power plant Tool moves, and the test device being connect with sensor to be measured is pulled out from sensor to be measured, to realize accurately automatic connection With pull out, reduce and artificially pull out damage of the operation to sensor to be measured or test device, save economic cost.

Further, the feedback data is parsed in the controller, judges whether sensor to be measured meets established standards Step S300 after, further include：

S320：Show whether the judgement sensor to be measured meets established standards in the display device of the controller Judge result.

In order to directly it is artificial determine test as a result, after controller has parsed the feedback data, and pass through It is compared to obtain judging result with the internal threshold value with preset project to be tested, shows and sentence in the display device of controller Break as a result, whether meeting established standards for the determination sensor to be measured, wherein the threshold value of the project to be tested is institute Established standards are stated, the controller is computer, and the display device is computer screen, passes through the mistake of S300 above-mentioned After the parsing of Cheng Jinhang data, the value of project to be tested then shows OK on the display apparatus in threshold range；When passing through data solution After analysis, whether the value of project to be tested then show FAIL on the display apparatus when or not in threshold range.

Further, according to project to be tested, the controller sends test instruction to the test device, obtains and survey Before the step S200 of feedback data after examination, including S210.

S210：Preset the sensor identification to be measured and corresponding described to be tested with the sensor identification to be measured Project.

In order to carrying out subsequent parsing, and the data that allow test device to test can be corresponded and be stored, convenient Data parse and data are checked, preset in the controller sensor identification to be measured and with the sensor identification phase to be measured Corresponding test event so that controller, can be by corresponding feedback data in pre- after getting feedback data in test device If project to be tested and sensor identification to be measured is corresponding stores, wherein product identification can be the ID of sensor to be measured Number, it can also be other artificially defined titles or the title of system setting.Specific such as table 1.

Further, the feedback data is parsed in the controller, judges whether sensor to be measured meets established standards Step S300 after, further include S330.

S330 stores the feedback data, the sensor identification to be measured and the project to be tested with mapping relations In the database.Specifically, for the ease of determining influence and subsequent verification and corresponding time pair of the testing time to product Data are handled, when being stored, by the testing time with sensor identification to be measured, feedback data, project to be tested with Mapping relations store in the database, specific if table 1, the database can be local data base, can also be and controller Or other databases that test device is connected, such as cloud database.

Table 1

Wherein before being tested, project to be tested, total judgement, same day qualification rate are space in table 1.

Preferably, the time for generating the feedback data is stored in the database with the feedback data with mapping relations.

2 testing time of table with sensor identification to be measured, feedback data, project to be tested with mapping relations to be stored.

Further, the feedback data is parsed in the controller, judges whether sensor to be measured meets established standards Step S300 among, specifically include S301 to S303.

S301：The controller obtains the parameter of the test device, the threshold value of the default project to be tested, for surveying Try the parameter of the detection device of the sensor to be measured；

S302：The controller obtains the feedback data fed back according to preset times, and according to the test device Parameter, the parameter of the detection device, the feedback data determine the mean value of the project to be tested；

Specifically, for example aforementioned S300 of S301 and S302, this will not be repeated here.

S303：The mean value is judged whether the sensor to be measured accords with the threshold comparison for presetting the project to be tested Close established standards.

Specifically, on the basis of aforementioned S301, S302 and S300, by the mean data obtained after parsing and threshold value into Row comparison, to judge whether sensor to be measured meets setting mark, e.g., when mean value is M, threshold value is A~B and A<B, if M is not When in the range of A~B, then judge that sensor to be measured does not meet established standards, to realize automatic detection and automatically derived knot Fruit has saved the time cost and cost of labor of test.

Further, according to project to be tested, the controller sends test instruction to the test device, obtains and survey Before the step S200 of feedback data after examination, including S201.

S201：The detection device to testing the sensor to be measured is calibrated.

Detection device is calibrated, systematic error is avoided to cause test result inaccurate, improve detection rate of precision and The yield rate of detection.

Preferably, the controller, which is realized by USB-CAN interfaces to the test device, sends the test instruction, obtains Take the feedback data, USB-CAN:The CAN interface card of USB forms for computer, host computer (controller) and under Be provided with corresponding USB-CAN interfaces between position machine (test device), in order to host computer to slave computer send test instruction and Obtain the wealthy data of model after test, wherein controller may be computer.

The above is only some embodiments of the utility model, it is noted that for the common skill of the art For art personnel, without departing from the principle of this utility model, several improvements and modifications can also be made, these improve and Retouching also should be regarded as the scope of protection of the utility model.

Claims (8)

1. a kind of test system of car backing sensor, which is characterized in that including controller, test device, power plant, the control Device processed is electrically connected with the power plant and the test device respectively so that the controller can control the power plant hair Raw mechanical movement, and the controller controls the test device and test and obtain feedback coefficient from the test device According to；The test device is installed with the pedestal of fixed sensor to be measured；The power plant and the pedestal be oppositely arranged and with The test device is fixedly connected, and described power plant one end is connect with the test device so that the power plant by When being controlled to the controller, the power plant can push the test device, enable the relatively described base of the test device Seat is subjected to displacement, and realizes the contraposition grafting of the test device and the sensor to be measured being fixed on the pedestal.

2. the test system of car backing sensor according to claim 1, which is characterized in that the test device includes test Platform can be driven the connector for occurring that mechanical movement is realized and the sensor contraposition to be measured plugs by the power plant, described Power plant and the pedestal are opposite and are respectively and fixedly installed on the testboard, and the connector is opposite with the pedestal to be set It sets.

3. the test system of car backing sensor according to claim 2, which is characterized in that the connector and the power Device is connected by slide-bar, and the power plant is provided with the slide opening slided for the slide-bar.

4. the test system of car backing sensor according to claim 3, which is characterized in that the connector with it is described to be measured Sensor junction is provided with the detection device for acquiring feedback data.

5. the test system of car backing sensor according to claim 2, which is characterized in that be provided on the testboard with The emergency switch that the power plant is electrically connected.

6. the test system of car backing sensor according to claim 1, which is characterized in that be provided with limit on the pedestal Part, the locating part is for limiting and fixing the sensor to be measured.

7. the test system of car backing sensor according to claim 1, which is characterized in that the controller and the test It is realized and is electrically connected by USB-CAN between device.

8. the test system of the car backing sensor according to claim 1 to 7 any one, which is characterized in that the power Device is double cylinder Two axle drive structures.