CN207923472U

CN207923472U - A kind of ground sensor magnetic field intensity detection device

Info

Publication number: CN207923472U
Application number: CN201721918983.2U
Authority: CN
Inventors: 张伟
Original assignee: Chengdu Senchuan Science And Technology Co Ltd
Current assignee: Chengdu Senchuan Science And Technology Co Ltd
Priority date: 2017-12-29
Filing date: 2017-12-29
Publication date: 2018-09-28
Anticipated expiration: 2027-12-29

Abstract

The utility model discloses a kind of ground sensor magnetic field intensity detection devices, including multiple detection probes, ADC module synchronous with amplitude judgment module, multi-channel high-speed and jtag interface debugging module are connected the output end of detection probe respectively, and amplitude judgment module connects MCU module with the output end of jtag interface debugging module；Multi-channel high-speed synchronizes ADC module and is interconnected with MCU module；The output end of MCU module is connected with RS232 interface drive module and self-test coil control isolation module respectively；The input terminal of MCU module is connected with the output end of probe positions selection signal isolation input module, and the input of probe positions selection signal isolation input module connects Sed signals.The multiple Hall sensors spare each other of setting in the probe of the utility model, it can be ensured that treat all standing of geodetic sensor；Using high-speed synchronous AD acquisition techniques, the short state of useful signal duration under train high-speed cruising, strong interference immunity can adapt to.

Description

A kind of ground sensor magnetic field intensity detection device

Technical field

The utility model belongs to electric locomotive automatic passing over of neutral section Function detection technical field, more particularly to a kind of ground sensor magnetic Field intensity detection device.

Background technology

Electric railway power grid uses single phase power supply, and electric system is then three-phase power supply system.In order to make electrified iron Road takes stream almost symmetry from Three-phase Power Systems power grid, and electric railway uses split-phase and is segmented the method for taking stream, i.e., every 20 A phase-separating section is arranged in~25km, and adjacent phase-separating section is powered by the two-phase of out of phase, and there are about 30m's or so for adjacent phase-separating section Power dead zone, thus there are problems that how electric locomotive passes through phase-separating section.To prevent phase fault, generally use at present " power-down mode is automatically controlled on vehicle " is received by automatic passing over of neutral section ground sensing device (being subsequently referred to as ground sensor), vehicle-mounted induction Device, it is vehicle-mounted control system composition, wherein ground sensor is used to provide location information in split-phase region, inform onboard system close, Disconnecting, which is touched net, powers.It is as shown in Figure 1 to feel sensing device schematic diagram to phase separation point position.It is vertically projected to steel with neutral section both ends On rail, both sides measure a Room distance a respectively to the left and right, fix the installation site of first group of ground sensor, which also known as forces Point；Certain distance b is measured with this point respectively to the left and right again, fixs the installation site of the second ground sensor, which is known as predicting Point.Recovery point when advance notice point and forced point when reverse phase is run also are run as forward direction uses, and feels on four ground of phase separation point Device can all be used in forward and reverse pick up.

Automatic neutral-section passing system is received by automatic passing over of neutral section ground sensing device (being subsequently referred to as ground sensor), vehicle-mounted induction Device, vehicle control syetem three parts composition.

The ground sensor of automatic neutral-section passing system is substantially a permanent magnet, and vehicle-mounted sense is triggered by the magnetic field of the permanent magnet Reception device is answered to output signal to rear grade train controlling system, can the quality and magnets magnetic fields intensity of magnet are directly related to Effectively trigger vehicle-mounted induction reception device.It is existing to be both for vehicle-mounted part for automatic neutral-section passing system automatic checkout equipment The detection for incuding reception device, control system uses manually periodically go to each split-phase at present for the detection of ground sensing device Point is detected manually with magnetic-field-measuring device, and that there are operation intensities is big, detection cycle is long, detection data accuracy is by manual operation shadow It rings, be not easy to test data concentration, be not easy to the problems such as trace analysis, a kind of automation of operation field feedback urgent need solution is surveyed Device is measured to solve the problems, such as this.

Utility model content

The purpose of the utility model is to overcome the deficiencies in the prior art, providing a kind of can ensure to treat geodetic sensor All standing can adapt to the short state of useful signal duration under train high-speed cruising, the ground sensor magnetic field of strong interference immunity Intensity detecting device.

The purpose of this utility model is achieved through the following technical solutions：A kind of ground sensor magnetic field intensity detection dress Set, including multiple detection probes, multi-channel high-speed synchronize ADC module, AD base modules, MCU module, amplitude judgment module, Jtag interface debugging module, RS485 interface drivers module, RS232 interface drive module, probe positions selection signal isolation input Module, self-test coil control isolation module；

The output end of detection probe ADC module synchronous with amplitude judgment module, multi-channel high-speed and jtag interface tune respectively Die trial block is connected, and amplitude judgment module connects MCU module with the output end of jtag interface debugging module；The output of AD base modules End ADC module synchronous with multi-channel high-speed is connected, and multi-channel high-speed synchronizes ADC module and interconnected with MCU module；

The output end of MCU module is connected with RS232 interface drive module and self-test coil control isolation module respectively, self-test Coil controls the output end of isolation module by being drivingly connected self-test line；

The input terminal of MCU module is connected with the output end of probe positions selection signal isolation input module, probe positions choosing Select the input connection Sed signals of signal isolation input module；

MCU module is interconnected with RS485 interface drivers module and EEPROM respectively.

Further, the amplitude judgment module uses comparator.

Further, the detection device includes four detection probes, respectively symmetrically is mounted on the left and right sides of train； The Sed signals are probe selection signal：The data that the detection probe acquisition on a left side 1 is selected if Sed signals are 00, if Sed believes Number for 01 select a left side 2 detection probe acquisition data, if Sed signals be 10 if select the right side 1 detection probe acquisition number According to the data for selecting the detection probe on the right side 2 to acquire if Sed signals are 11.

Further, the detection probe is Hall sensor array, for carrying out magnetic field intensity detection.

Further, the probe further includes 24V/+5V isolation DC/DC modules, for the input voltage of 24V to be converted into + 5V voltages, for remaining interior module for power supply of popping one's head in.

The utility model has the beneficial effects that：

1, two detection probes are set per side in train, detection probe carries out magnetic field intensity inspection using Hall sensor array It surveys, two detection probes are spare each other, it can be ensured that treat all standing of geodetic sensor, while to adapt in train travelling process Serpentine locomotion, it is ensured that not test leakage；The probe of the utility model can be directly mounted at catenary design, track operation vehicle etc. can It is easy for installation on the train for carrying out job state detection, it is easy to operate, it is easy to spread；Can effectively it prevent because of ground sensor problem Cause to charge split-phase accident, improves the reliability of automatic neutral-section passing system, while also simplifying field personnel's operation intensity And task difficulty；

2, using high-speed synchronous AD acquisition techniques, it can adapt to the short shape of useful signal duration under train high-speed cruising State, and probe output is digital signal, strong interference immunity.

Description of the drawings

Fig. 1 is the phase separation point position ground sensing device schematic diagram of the utility model；

Fig. 2 is the structural schematic diagram of the ground sensor magnetic field intensity detection device of the utility model.

Specific implementation mode

The technical solution of the utility model is further illustrated below in conjunction with the accompanying drawings.

As shown in Fig. 2, a kind of ground sensor magnetic field intensity detection device, including multiple detection probes, multi-channel high-speed synchronize ADC modules, AD base modules, MCU module, amplitude judgment module, jtag interface debugging module, RS485 interface drivers module, RS232 interface drive module, probe positions selection signal isolation input module, self-test coil control isolation module；

The output end of detection probe ADC module synchronous with amplitude judgment module, multi-channel high-speed and jtag interface tune respectively Die trial block is connected, and amplitude judgment module connects MCU module with the output end of jtag interface debugging module；The output of AD base modules End ADC module synchronous with multi-channel high-speed is connected, and multi-channel high-speed, which synchronizes the output that ADC module is used for multiple Magnetic Sensors, to be believed Number acquisition is synchronized, and converts analog signals into digital signal；Multi-channel high-speed synchronizes ADC module and MCU module is mutual Even；

Further, the amplitude judgment module uses comparator.

Those of ordinary skill in the art will understand that the embodiments described herein, which is to help reader, understands this reality With novel principle, it should be understood that the scope of the present invention is not limited to such specific embodiments and embodiments. Those skilled in the art can make according to the technical disclosures disclosed by the utility model various does not depart from this practicality Novel substantive various other specific variations and combinations, these variations and combinations are still within the protection scope of the present invention.

Claims

1. a kind of ground sensor magnetic field intensity detection device, which is characterized in that synchronized including multiple detection probes, multi-channel high-speed ADC module, AD base modules, MCU module, amplitude judgment module, jtag interface debugging module, RS485 interface drivers module, RS232 interface drive module, probe positions selection signal isolation input module, self-test coil control isolation module；

ADC module synchronous with amplitude judgment module, multi-channel high-speed and jtag interface debug mould to the output end of detection probe respectively Block is connected, and amplitude judgment module connects MCU module with the output end of jtag interface debugging module；The output end of AD base modules with Multi-channel high-speed synchronizes ADC module and is connected, and multi-channel high-speed synchronizes ADC module and interconnected with MCU module；

The output end of MCU module is connected with RS232 interface drive module and self-test coil control isolation module respectively, self-test coil The output end of isolation module is controlled by being drivingly connected self-test line；

The input terminal of MCU module is connected with the output end of probe positions selection signal isolation input module, probe positions selection letter The input of number isolation input module connects Sed signals, and the Sed signals are probe selection signal；

2. a kind of ground sensor magnetic field intensity detection device according to claim 1, which is characterized in that the amplitude judges mould Block uses comparator.

3. a kind of ground sensor magnetic field intensity detection device according to claim 1, which is characterized in that the detection probe is Hall sensor array, for carrying out magnetic field intensity detection.

4. a kind of ground sensor magnetic field intensity detection device according to claim 1, which is characterized in that the probe further includes DC/DC modules are isolated in 24V/+5V, for the input voltage of 24V to be converted into+5V voltages, for remaining interior module for power supply of popping one's head in.