Multifunctional ground detection control instrument

Abstract

The utility model belongs to the technical field of detection, and relates to a multifunctional ground detection control instrument, which comprises a mainboard, a case, an interface daughter board and a display control panel, the mainboard and the interface daughter board are arranged in the case; a power supply and management module and a heat dissipation module are arranged on the case; the case platform interface and the drive-by-wire panel are installed on the front face of the case. The mainboard is provided with a processor unit, an isolation power supply, a level conversion unit and an expansion interface unit. The interface daughter board is provided with a power connector, a signal connector, a power switch board, an analog daughter board, a digital daughter board and an aviation interface. A power switch is arranged on the power switch board and installed on the front face of the machine box. The analog daughter board is provided with a plurality of relays and analog-to-digital converters; the digital daughter board is provided with a plurality of operational amplifiers. The multifunctional ground detection control instrument has multiple ground detection functions, solves the problems of multiple ground detection items, difficult detection and disordered detection items, reduces the occupation of the use space, and saves the detection time.

Description

Technical Field

[0001] The utility model belongs to the field of detection technology, and specifically relates to a multifunctional detection control instrument. Background Art

[0002] The existing ground inspection solutions generally purchase multiple devices for remote control and telemetry respectively, use many external devices, occupy a large space, and are troublesome to switch external devices. The switching operation of multiple devices separately makes it inconvenient to use. In the existing ground inspection process, there are many projects, difficult inspections, and messy inspection items. It takes time to switch back and forth between multiple devices during the inspection process, and the inspection equipment occupies a large space. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a multifunctional ground detection and control instrument, including a main board, a chassis, an interface sub-board and a display and control panel; the main board and the interface sub-board are arranged in the chassis;

[0004] The chassis is equipped with a power supply and management module, a heat dissipation module and a chassis platform interface;

[0005] The mainboard is provided with a processor unit, an isolated power supply, a level conversion unit and an expansion interface unit;

[0006] The interface sub-board is provided with a power connector, a signal connector, a power switch board, an analog sub-board, a digital sub-board and an aviation interface; the power switch board is provided with a power switch; the analog sub-board is provided with a plurality of relays and a plurality of analog-to-digital converters; the digital sub-board is provided with a plurality of operational amplifiers and a plurality of bidirectional transmission interface units; the input end of the analog-to-digital converter is connected with the aviation interface electrical signal, and the output end of the analog-to-digital converter is connected with the signal connector electrical signal;

[0007] The power supply and management module and the heat dissipation module are respectively connected to the chassis platform interface electrical signals;

[0008] The processor unit is electrically connected to the level conversion unit, the expansion interface unit, and the display control panel; the level conversion unit is electrically connected to the signal connector; the signal connector is electrically connected to the power switch, the relay, the analog-to-digital converter, and the operational amplifier respectively;

[0009] The power connector, the power switch board, the analog daughter board and the digital daughter board are respectively connected with the aviation interface electrical signal.

[0010] On the basis of the above technical solution, the present invention can also be improved as follows.

[0011] Furthermore, a plurality of temperature sensors are arranged on the mainboard; each temperature sensor is connected with the FPGA electrical signal.

[0012] Furthermore, the processor unit includes an FPGA and an ARM processor; the FPGA and the ARM processor, the level conversion unit, the expansion interface unit, and the display control panel are connected by electrical signals.

[0013] Furthermore, the power supply and management module includes an AC-DC conversion module and a power management chip.

[0014] Furthermore, a digital potentiometer is provided on the mainboard; the isolated power supply is electrically connected to the power connector via the digital potentiometer; and the processor unit is electrically connected to the control input terminal of the digital potentiometer.

[0015] Furthermore, a bidirectional transmission interface unit is also provided on the digital sub-board; the bidirectional transmission interface unit is electrically connected to the signal connector.

[0016] Furthermore, the processor unit is electrically connected to the analog-to-digital converter via the SPI bus.

[0017] Furthermore, the processor unit is connected to the level conversion unit and the expansion interface unit via an electrical signal bus.

[0018] Furthermore, the heat dissipation module includes a plurality of heat dissipation fans; the power supply and management module is connected with each heat dissipation fan by electrical signals.

[0019] The beneficial effects of the utility model are as follows: the multifunctional ground detection control instrument of the utility model has multiple ground detection functions, which solves the problems of many ground detection items, difficult detection, and messy detection items, effectively reduces the time consumption of switching back and forth of multiple devices during the detection process, reduces the occupation of the use space, and realizes multiple ground detection functions through one device, which greatly saves the time and energy of the detection personnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the multifunctional ground detection and control instrument provided in Example 1 of the utility model. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0022] As an example, Figure 1 As shown, in order to solve the above technical problems, this embodiment provides a multifunctional detection and control instrument, including a chassis, a main board, an interface sub-board and a display and control panel; the main board and the interface sub-board are arranged in the chassis;

[0023] The chassis is equipped with a power supply and management module, a heat dissipation module and a chassis platform interface;

[0024] The mainboard is provided with a processor unit, an isolated power supply, a level conversion unit and an expansion interface unit;

[0025] The interface sub-board is provided with a power connector, a signal connector, a power switch board, an analog sub-board, a digital sub-board and an aviation interface; the power switch board is provided with a power switch; the analog sub-board is provided with a plurality of relays and an analog-to-digital converter; the digital sub-board is provided with a plurality of operational amplifiers; the input end of the analog-to-digital converter is connected with the electrical signal of the aviation interface, and the output end of the analog-to-digital converter is connected with the electrical signal of the signal connector;

[0026] The power supply and management module and the heat dissipation module are respectively connected to the chassis platform interface by electrical signals; the isolation power supply is connected to the power connector by electrical signals;

[0027] The processor unit is electrically connected to the level conversion unit, the expansion interface unit, and the display control panel; the level conversion unit is electrically connected to the signal connector; the signal connector is electrically connected to the power switch, the relay, the analog-to-digital converter, and the operational amplifier respectively;

[0028] The power connector, power switch board, analog daughter board and digital daughter board are connected to the aviation interface electrical signal respectively. The aviation interface adopts the following Figure 1 Aviation interface 1 and aviation interface 2 are shown.

[0029] In actual application, the power supply and management module can provide power output with enabling protection function. For example, it can provide two stable 28V DC power supplies with a maximum current of 2A to external devices, and can still work normally under surge conditions.

[0030] The analog daughter board uses two relays to switch the external devices to the main and standby modes. Figure 1 Relay 1 and relay 2 are shown. Provide OC command switching for external devices, generate current negative pulses of more than 80ms; the relay can realize magnetic holding function, and can flip from one steady state to another steady state through pulse current. The analog-to-digital converter on the analog daughter board can realize the acquisition of multiple analog electrical signals entering from the outside, for example, the range of analog electrical signals is 0-3300mV.

[0031] Through the operational amplifier of the digital daughter board, multiple groups of PRF signals, multiple groups of serial code signals, and independent action signals of multiple pins can be sent to the outside. For example, 8 groups of independent pin actions can be sent to the outside by sending 8 groups of differential data, and the data can be set high or low when different control states are required.

[0032] The processor unit can independently set and query the duration, output enable, working mode, pulse width, and pulse position of the PRF signal. The step of the PRF signal duration is 0.1us, and the value range is 1000-20000, that is, the frequency is 10K-500Hz. The PRF working mode includes four working modes: normally high, normally low, synchronous positive pulse, and synchronous negative pulse. The step of the pulse width is 01us, and the value range is 100-20000, that is, 10us-20ms. The pulse position sets the lead or lag of the starting position, with a step of 01us and a value range of: -4000-4000, that is, 400us ahead to 400us behind.

[0033] The processor unit independently sets and queries the number of bits, output mode, trigger mode, and pulse position of the serial code signal. The number of bits of the serial code signal includes 18BITs mode and 13BITs mode; the output mode includes synchronous output mode and trigger output mode; the trigger mode includes rising edge trigger and falling edge trigger; the pulse start position is set, for example, the step is 01us, and the value range is: -4000-4000, that is, 400us ahead to 400us behind.

[0034] Optionally, the expansion interface includes a network interface, a debugging interface and a USB interface. The network interface is a Gigabit Ethernet port, which controls the working status of the detector through the network. The debugging interface is a mini-B type USB interface, which is used to print the information of the detected device. The device data information is received through the type-A type USB interface.

[0035] Optionally, the display and control panel uses an LCD display screen to display the power status of the detector, the power main and standby switching selection status, the device temperature, working status, device serial number and other information of the detected device.

[0036] Optionally, a plurality of temperature sensors are provided on the mainboard; each temperature sensor is connected to the FPGA electrical signal.

[0037] Optionally, the processor unit includes an FPGA and an ARM processor; the FPGA and the ARM processor, the level conversion unit, the expansion interface unit, and the display and control panel are connected by electrical signals.

[0038] Optionally, the power supply and management module includes an AC-DC power supply module and a power management chip; the AC-DC power supply module is electrically connected to the power management chip.

[0039] Optionally, a digital potentiometer is provided on the mainboard; the isolated power supply is electrically connected to the power connector via the digital potentiometer; and the processor unit is electrically connected to the control input terminal of the digital potentiometer.

[0040] Optionally, an analog-to-digital converter circuit can be used to detect the external temperature of the device. An external thermistor is connected through aviation interface 1, and the external temperature parameter can be calculated by measuring the voltage of the thermistor.

[0041] Optionally, a bidirectional transmission interface unit is further provided on the digital sub-board; the bidirectional transmission interface unit is electrically connected to the signal connector, and bidirectional transmission of digital signals is achieved by reserving the bidirectional transmission interface.

[0042] Optionally, the processor unit is connected to the analog-to-digital converter via an SPI bus electrical signal, which can ensure data transmission speed.

[0043] Optionally, the processor unit is connected to the level conversion unit and the expansion interface unit via an electrical signal bus.

[0044] Optionally, the heat dissipation module includes a plurality of heat dissipation fans; the power supply and management module is electrically connected to each heat dissipation fan.

[0045] The multifunctional ground detection and control instrument of the utility model has multiple ground detection functions, which solves the problems of many ground detection items, difficult detection and messy detection items, effectively reduces the time consumption of switching back and forth of multiple devices during the detection process, reduces the occupation of the use space, and realizes multiple ground detection functions through one device, which greatly saves the time and energy of the detection personnel.

[0046] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. Multifunctional ground detection and control instrument, characterized in that: It includes a chassis, a main board, an interface sub-board and a display control panel; the main board and the interface sub-board are arranged in the chassis; The chassis is equipped with a power supply and management module, a heat dissipation module and a chassis platform interface; The mainboard is provided with a processor unit, an isolated power supply, a level conversion unit and an expansion interface unit; The interface sub-board is provided with a power connector, a signal connector, a power switch board, an analog sub-board, a digital sub-board and an aviation interface; the power switch board is provided with a power switch; the analog sub-board is provided with a plurality of relays and an analog-to-digital converter; the digital sub-board is provided with a plurality of operational amplifiers; the input end of the analog-to-digital converter is connected with the electrical signal of the aviation interface, and the output end of the analog-to-digital converter is connected with the electrical signal of the signal connector; The power supply and management module and the heat dissipation module are respectively connected to the chassis platform interface electrical signals; Isolate the power supply and the power connector electrical signal connection; The processor unit is electrically connected to the level conversion unit, the expansion interface unit, and the display control panel; the level conversion unit is electrically connected to the signal connector; the signal connector is electrically connected to the power switch, the relay, the analog-to-digital converter, and the operational amplifier respectively; The power connector, the power switch board, the analog daughter board and the digital daughter board are respectively connected with the aviation interface electrical signal.

2. The multifunctional ground detection and control instrument according to claim 1, characterized in that: Several temperature sensors are arranged on the mainboard; each temperature sensor is connected with the FPGA electrical signal.

3. The multifunctional ground detection and control instrument according to claim 1, characterized in that: The processor unit includes FPGA and ARM processor; the FPGA and ARM processor, the level conversion unit, the expansion interface unit, and the display control panel are connected by electrical signals.

4. The multifunctional ground detection and control instrument according to claim 1, characterized in that: The power supply and management module includes an AC-DC power supply module and a power management chip; the AC-DC power supply module is connected to the power management chip by electrical signals.

5. The multifunctional ground detection and control instrument according to claim 1, characterized in that: A digital potentiometer is arranged on the main board; the isolated power supply is electrically connected to the power connector through the digital potentiometer; and the processor unit is electrically connected to the control input terminal of the digital potentiometer.

6. The multifunctional ground detection and control instrument according to claim 1, characterized in that: A bidirectional transmission interface unit is also provided on the digital sub-board; the bidirectional transmission interface unit is connected with the signal connector by electrical signals.

7. The multifunctional ground detection and control instrument according to claim 1, characterized in that: The processor unit is connected to the analog-to-digital converter via an SPI bus.

8. The multifunctional ground detection and control instrument according to claim 1, characterized in that: The processor unit is connected with the level conversion unit and the expansion interface unit through a bus via electrical signals.

9. The multifunctional ground detection and control instrument according to claim 1, characterized in that: The heat dissipation module includes a plurality of heat dissipation fans; the power supply and management module is connected with each heat dissipation fan by electrical signals.

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