CN108508237A - Detection device that is a kind of while detecting multiple vehicle speed sensor - Google Patents

Abstract

A detection device for simultaneously detecting a plurality of vehicle speed sensors relates to the field of automotive electronics, in order to solve the problem that only one vehicle speed sensor can be detected at a time in the prior art, which wastes manpower and the detection speed is slow. The motor is used to drive the gear to rotate, the sensor fixing bracket is ring-shaped, the sensor fixing bracket is sleeved on the periphery of the gear, the sensor fixing bracket is not in contact with the gear, and multiple vehicle speed sensors are distributed along the circumferential direction of the sensor fixing bracket, and the vehicle speed sensor is used to detect the gear , The handheld data display is used to judge whether the vehicle speed sensor is qualified and display it according to the waveform output by the vehicle speed sensor. The invention is suitable for detecting multiple vehicle speed sensors at the same time.

Description

A detection device for simultaneously detecting multiple vehicle speed sensors

technical field

The invention relates to the field of automotive electronics, in particular to a device for simultaneously detecting multiple Hall sensors.

Background technique

The existing vehicle speed sensor detection technology uses a motor to drive the transmission gear to rotate, and the sensor is fixed at a certain position on the outer circumference of the transmission gear to detect the signal of a single sensor and display it to the operator through the display module. judge whether the parameters are qualified or not. The prior art can only detect one vehicle speed sensor at a time, which wastes manpower and the detection speed is slow.

Contents of the invention

The purpose of the present invention is to solve the problem of only one vehicle speed sensor being detected at a time in the prior art, which wastes manpower and slow detection speed, thereby providing a detection device for simultaneously detecting multiple vehicle speed sensors.

A detection device for simultaneously detecting multiple vehicle speed sensors, comprising a motor, a gear 1, a sensor fixing bracket 2 and a hand-held data display 3;

The motor is used to drive the gear 1 to rotate, the sensor fixing bracket 2 is ring-shaped, the sensor fixing bracket 2 is set on the periphery of the gear 1, the sensor fixing bracket 2 is not in contact with the gear 1, and a plurality of vehicle speed sensors 4 are distributed along the circumferential direction of the sensor fixing bracket 2, The vehicle speed sensor 4 is used to detect the gear 1, and the hand-held data display 3 is used to judge whether the vehicle speed sensor 4 is qualified according to the waveform output by the vehicle speed sensor 4 and display it.

Preferably, a power supply is also included, and the power supply includes a fixed-value power supply and two adjustable power supplies; the two adjustable power supplies are both powered from the fixed-value power supply, and then supply power to the motor and the vehicle speed sensor 4 respectively.

Preferably, the handheld data display 3 includes a plurality of AD acquisition modules 3-1, a central processing module 3-2, a data memory module 3-3 and a liquid crystal display module 3-4;

The AD acquisition module 3-1 is in one-to-one correspondence with the vehicle speed sensor 4;

The AD acquisition module 3-1 is used to receive the waveform represented by the analog quantity output by the corresponding vehicle speed sensor 4, convert the analog quantity into a digital quantity, and output the waveform represented by the digital quantity;

The central processing module 3-2 is used to receive the waveform represented by digital quantities, calculate the measurement data of the corresponding vehicle speed sensor 4 according to the waveform, and judge whether the corresponding vehicle speed sensor 4 is qualified according to the measurement data, and is used to convert the key points in the measurement data The data and judgment result data are sent to the data memory module 3-3, and are also used to control the data sent by the data memory module 3-3 to the liquid crystal display module 3-4;

The data memory module 3-3 is used to store the received data, and is also used to send data to the liquid crystal display module 3-4;

The liquid crystal display module 3-4 is used for displaying the received data.

Preferably, the central processing module 3-2 is also used to send voltage control signals to the two adjustable power supplies respectively, so as to control the output voltage of the adjustable power supplies.

Preferably, the central processing module 3-2 is also used to receive a control signal, and control the data sent by the data memory module 3-3 to the liquid crystal display module 3-4 according to the control signal.

Preferably, the key data include rotational speed, frequency, high and low levels and duty cycle.

The invention can detect multiple vehicle speed sensors at the same time, can greatly increase the speed of the detection link in the production process, reduce the detection time of the detection link, reduce the waste of human resources for enterprises, and improve the automation level. The detection device has good versatility, and can be compatible with different products only by replacing the ring sensor fixing bracket, and also saves equipment expenses for the production unit.

Description of drawings

Fig. 1 is a kind of structural schematic diagram of the detection device that simultaneously detects a plurality of vehicle speed sensors;

Figure 2 is a block diagram of the handheld data display.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, but not as a limitation of the present invention.

A detection device for simultaneously detecting multiple vehicle speed sensors, comprising a motor, a gear 1, a sensor fixing bracket 2 and a hand-held data display 3;

The motor is used to drive the gear 1 to rotate, the sensor fixing bracket 2 is ring-shaped, the sensor fixing bracket 2 is set on the periphery of the gear 1, the sensor fixing bracket 2 is not in contact with the gear 1, and 16 vehicle speed sensors 4 are distributed along the circumferential direction of the sensor fixing bracket 2, The vehicle speed sensor 4 is used to detect the gear 1, and the hand-held data display 3 is used to judge whether the vehicle speed sensor 4 is qualified according to the waveform output by the vehicle speed sensor 4 and display it.

In this embodiment, a power supply is also included, and the power supply includes a fixed-value power supply and two adjustable power supplies; the two adjustable power supplies both take power from the fixed-value power supply, and then supply power to the motor and the vehicle speed sensor 4 respectively.

Since the motor, vehicle speed sensor, and handheld data display have their own requirements for the power supply voltage, the power supply includes two parts. The motor needs to be adjusted in speed, and different speeds need to be provided to meet the detection requirements. Therefore, an adjustable power supply is used to adjust the motor speed by adjusting the power supply voltage. In order to improve the versatility of the detection device to adapt to different sensor products, the power supply of the vehicle speed sensor also adopts an adjustable power supply.

In this embodiment, the main data collection process is completed by the handheld data display, which is developed based on a single-chip microcomputer system. The handheld data display 3 includes a plurality of AD acquisition modules 3-1, a central processing module 3-2, and a data memory module 3- 3 and liquid crystal display module 3-4;

The AD acquisition module 3-1 is in one-to-one correspondence with the vehicle speed sensor 4;

The AD acquisition module 3-1 is used to receive the waveform represented by the analog quantity output by the corresponding vehicle speed sensor 4, convert the analog quantity into a digital quantity, and output the waveform represented by the digital quantity;

The central processing module 3-2 is used to receive the waveform represented by digital quantity, calculate the measurement data of the corresponding vehicle speed sensor 4 according to the waveform, and judge whether the corresponding vehicle speed sensor 4 is qualified according to the measurement data, and is used to convert the key points in the measurement data Sexual data and judgment result data are sent to the data memory module 3-3, and are also used to control the data that the data memory module 3-3 sends to the liquid crystal display module 3-4;

The data memory module 3-3 is used to store the received data, and is also used to send data to the liquid crystal display module 3-4;

The liquid crystal display module 3-4 is used for displaying the received data.

Detection method: The operator first enters the product information into the handheld data display, and then fixes all the vehicle speed sensor products on the circular sensor fixing bracket, powers up the vehicle speed sensor and the motor starts to accelerate at the same time, the handheld data display and two can Adjust the power supply communication, send voltage control signals to control the voltage provided to the motor, and control the corresponding speed according to the test stage. This measurement device is open-loop, and the standard range of speed adjustment is relatively wide. Different voltage control signals can also be sent for different vehicle speed sensor detection schemes For different models of vehicle speed sensors. The hand-held data display shows the detection amount of each vehicle speed sensor. If the operator wants to see the data, he can observe the parameters of different vehicle speed sensors by inputting control signals to the central processing module 3-2. After the inspection is completed, the liquid crystal display module will give priority to marking the page number of the unqualified product, and the operator only needs to input the control signal to flip and view, so as to identify which items of which product are unqualified, and detect and classify the unqualified products.

In this embodiment, 16 detection objects are arranged in a circle around the gear. Under the condition of the same detection time, all detection objects are detected simultaneously, which directly increases the detection rate by 16 times. At the same time, the detection results can be automatically judged and listed. Qualified product designation and non-conforming items. The operator only needs to look through them intensively after monitoring to distinguish qualified products from unqualified products. Greatly reduce the operator's workload and detection time, while increasing the detection rate several times. The number of vehicle speed sensors can also be increased, only the large-size gear and the sensor fixing bracket need to be replaced.

Claims (6)

1. detection device that is a kind of while detecting multiple vehicle speed sensor, which is characterized in that including motor, gear (1), sensor Fixing bracket (2) and handheld data display (3)；

Motor is used for band moving gear (1) and rotates, and sensor fixing bracket (2) is annular, and sensor fixing bracket (2) is sleeved on gear (1) peripheral, sensor fixing bracket (2) is not contacted with gear (1), and multiple vehicle speed sensor (4) are along sensor fixing bracket (2) It is circumferentially distributed, vehicle speed sensor (4) is for detecting gear (1), and handheld data display (3) according to speed for passing The waveform of sensor (4) output judges whether vehicle speed sensor (4) is qualified and shown.

2. detection device that is according to claim 1 a kind of while detecting multiple vehicle speed sensor, which is characterized in that also wrap Power supply is included, power supply includes definite value power supply and 2 regulated power supplies；2 regulated power supplies take electricity from definite value power supply, then divide It Wei not motor and vehicle speed sensor (4) power supply.

3. detection device that is according to claim 2 a kind of while detecting multiple vehicle speed sensor, which is characterized in that described Handheld data display (3) includes multiple AD acquisition modules (3-1), central processing module (3-2), data accumulating module (3-3) With LCD MODULE (3-4)；

AD acquisition modules (3-1) are corresponded with vehicle speed sensor (4)；

AD acquisition modules (3-1), the waveform characterized with analog quantity for receiving corresponding vehicle speed sensor (4) output, will simulate Amount is converted to digital quantity, exports the waveform characterized with digital quantity；

Central processing module (3-2), for receiving the waveform characterized with digital quantity, according to the corresponding vehicle speed sensor of waveshape (4) measurement data, and judge whether corresponding vehicle speed sensor (4) is qualified, and being used for will be in measurement data according to measurement data Critical data and judging result data be sent to data accumulating module (3-3), be additionally operable to control data accumulating module (3-3) It is sent to the data of LCD MODULE (3-4)；

Data accumulating module (3-3) is additionally operable to for storing the data received to LCD MODULE (3-4) transmission data；

LCD MODULE (3-4), for showing the data received.

4. detection device that is according to claim 3 a kind of while detecting multiple vehicle speed sensor, which is characterized in that described Central processing module (3-2) is additionally operable to send voltage control signal, the electricity of control regulated power supply output to 2 regulated power supplies respectively Pressure.

5. detection device that is according to claim 3 a kind of while detecting multiple vehicle speed sensor, which is characterized in that described Central processing module (3-2) is additionally operable to receive control signal, is sent to according to the control signal control data memory module (3-3) The data of LCD MODULE (3-4).

6. detection device that is according to claim 3 a kind of while detecting multiple vehicle speed sensor, which is characterized in that described Critical data includes rotating speed, frequency, low and high level and duty ratio.