Low-power-consumption control device and method for coal mine underground slot wave detector

Abstract

The low-power-consumption control device comprises a lithium battery pack, the lithium battery pack is connected with a battery protection circuit, and the battery protection circuit is connected with a power conversion and management circuit. And the power conversion and management circuit is respectively connected with a sequential circuit, a control circuit and an acquisition circuit of the underground coal mine slot wave detector for power supply. According to the low-power-consumption control device, the power consumption of the underground coal mine slot wave detector can be reduced, the working time of the underground coal mine slot wave detector is prolonged, and the efficiency and precision of underground coal mine slot wave detection construction are improved.

Description

Technical Field

[0001] The invention belongs to the technical field of mine geophysical exploration equipment, relates to a channel wave detector, and specifically relates to a low power consumption control device and method for a channel wave detector in a coal mine. Background Art

[0002] Slot wave seismic exploration uses guided waves that are excited and propagated in coal seams to detect coal seam discontinuities. Seismic waves reflect back and forth on the top and bottom plates of coal troughs and interfere with each other to form slot waves. When slot waves encounter abnormal bodies such as faults, their energy, speed, frequency and other properties will change. By studying this change, structural detection can be achieved. Compared with other mine exploration methods, slot wave seismic exploration has the advantages of large detection distance, high accuracy, strong anti-interference ability, easy waveform recognition and intuitive results.

[0003] The requirements for the precise detection of geological conditions for safe and efficient mining of coal mines are becoming increasingly higher. With the continuous increase in the exploration depth, the resolution of ground three-dimensional seismic exploration and electrical exploration has gradually decreased, and it can no longer fully meet the needs of efficient and intensive coal mining. The underground channel wave seismic exploration technology in coal mines has the unique advantage of high detection accuracy due to its advantages such as being close to the detection target and not being affected by factors such as ground terrain undulations.

[0004] In view of the problems of slot wave seismic exploration technology, such as lack of basic research, bulky construction equipment, complicated construction procedures, small number of collection channels, and the need to improve processing and imaging technology, it is necessary to develop a new generation of slot wave perspective technology and equipment with high detection accuracy in coal mines.

[0005] With the emergence of super-large working faces, when conducting channel wave exploration in coal mines, dozens or even hundreds of channel wave detectors are often needed to collect data at the same time. In order to improve the detection accuracy, the number of blasting in a single construction in the mine reaches hundreds, and the data collection time is getting longer and longer. This puts forward new requirements for the working time of channel wave detectors in coal mines.

[0006] In order to meet the coal safety certification of mining products and ensure that the equipment is light enough, it is very necessary to increase the working time of mine channel wave detectors. This requires low power consumption design and management of mine channel wave detectors. Summary of the invention

[0007] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a low-power consumption control device and method for a coal mine underground channel wave detector, so as to solve the technical problem that the power consumption of the coal mine underground channel wave detector in the prior art needs to be further reduced.

[0008] In order to solve the above technical problems, the present invention adopts the following technical solutions to achieve the above problems:

[0009] A low-power control device for a coal mine underground channel wave detector, including a lithium battery pack, characterized in that the lithium battery pack is connected to a battery protection circuit, the battery protection circuit is connected to a power conversion and management circuit, and the power conversion and management circuit is respectively connected to a timing circuit, a control circuit and an acquisition circuit of the coal mine underground channel wave detector for power supply.

[0010] The present invention also has the following technical features:

[0011] The battery protection circuit includes a chip U1, and an OUT port of the chip U1 is connected to an IN port of the chip U2.

[0012] The power conversion and management circuit includes chip U3 and chip U4. The VOUT port of chip U3 outputs 3.3V_Alive voltage; the VOUT port of chip U4 outputs +5V voltage; the VOUT port of chip U4 is also connected to the VIN port of chip U5 and the VIN port of chip U6 respectively, the VOUT port of chip U5 outputs 3.3V_ARM voltage; the VOUT port of chip U6 outputs 3.3V_STM voltage.

[0013] The timing circuit includes chip U7, chip U8 and chip U9. The GND port of chip U7 is grounded, the D port and CLK port of chip U8 are grounded, and the D port and CLK port of chip U9 are grounded; the Q port of chip U9 is connected to the X1 port of chip U10.

[0014] The control circuit includes a chip U11, wherein the DAT[0] port of the chip U11 is connected to the DAT0 port of the chip U12, the DAT[1] port of the chip U11 is connected to the DAT1 port of the chip U12, the DAT[2] port of the chip U11 is connected to the DAT2 port of the chip U12, the DAT[3] port of the chip U11 is connected to the DAT3 port of the chip U12, the CMD port of the chip U11 is connected to the CMD port of the chip U12, and the CLK port of the chip U11 is connected to the CLK port of the chip U12; the nCD port of the chip U12 is connected to the 1A port of the chip U13, and the WP port of the chip U12 is connected to the 2A port of the chip U13.

[0015] The acquisition circuit includes chip U14, the TEMP port of chip U14 is connected to the TIN+ port of chip U15, the VOUT port of chip U14 is connected to the REFIN port of chip U15; the CB0 port of chip U15 is connected to the CB0 port of chip U16, the CB1 port of chip U15 is connected to the CB1 port of chip U16, the CB2 port of chip U15 is connected to the CB2 port of chip U16, the CB3 port of chip U15 is connected to the CB3 port of chip U16, the CB4 port of chip U15 is connected to the CB4 port of chip U16, the MFLG port of chip U15 is connected to the MFLG port of chip U16, and the MDATA port of chip U15 is connected to the MDATA port of chip U16; the MCLK port of chip U15 is connected to the D port of chip U17, the MCLK port of chip U16 is connected to the S1 port of chip U17, and the PWRDN port of chip U16 is connected to the IN port of chip U17.

[0016] The output port of the lithium battery pack is connected to the IN port of the chip U1.

[0017] The OUT port of the chip U2 is connected to the VIN port of the chip U3 and the VIN port of the chip U4 respectively.

[0018] The VOUT port of the chip U3 is respectively connected to the VCC port of the chip U7, to the CLR port and the RR port of the chip U8, to the VCC port of the chip U10, and to the VCC port of the chip U13.

[0019] The VOUT port of the chip U4 is respectively connected to the VIN+ port of the chip U14, to the +VA port of the chip U15, to the VL port of the chip U16, and to the VDD port of the chip U17.

[0020] The VOUT port of chip U5 is connected to the VOUT port of chip U13. Ports and Port connection.

[0021] The VOUT port of the chip U6 is connected to the VDDH1 port, the VDDH2 port and the VDDC port of the chip U11 respectively.

[0022] In the battery protection circuit, the chip U1 and the chip U2 are both MAX14573 chips.

[0023] In the power conversion and management circuit, chip U3 and chip U4 both use chips with model LTM4623EY#PBF, and chip U5 and chip U6 both use chips with model TPS2553DVB.

[0024] In the timing circuit, chip U7 uses a 16.384MHz constant temperature crystal oscillator, chip U8 and chip U9 both use chips with model SN74HC74D, and chip U10 uses a chip with model DS1390.

[0025] In the control circuit, the chip U11 adopts a chip of model FSSD07BQX, the chip U12 adopts an SD card socket, and the chip U13 adopts a chip of model SN74LVC2G125.

[0026] In the acquisition circuit, chip U14 uses a chip with a signal of AD780, chip U15 uses a chip with a signal of AD1555BP, chip U16 uses a chip with a signal of AD1556AS, and chip U17 uses a chip with a signal of ADG719.

[0027] The lithium battery pack is used to provide power for the channel wave detector in the coal mine.

[0028] The battery protection circuit is used to implement overcharge protection, over-discharge protection, over-current protection and short-circuit protection for the lithium battery pack.

[0029] The power conversion and management circuit is used to convert the voltage output by the lithium battery pack into the voltage required by the coal mine underground channel wave detector.

[0030] The timing circuit is used to provide timing for the channel wave detector in coal mines.

[0031] The control circuit is used to use an embedded processor to realize the switching and management of the power supply of each part, as well as the low-power consumption control of the circuit, to realize the control of the AD conversion circuit of the coal mine underground channel wave detector, and to realize the control of the data storage and transmission of the coal mine underground channel wave detector.

[0032] The acquisition circuit is used to digitize the voltage signal output by the detector of the coal mine underground channel wave detector after shaping and filtering, and then amplifying and filtering, through the AD converter of the coal mine underground channel wave detector, and transmit it to the embedded processor in the control circuit of the coal mine underground channel wave detector through the SPI interface for processing.

[0033] The present invention also protects a low power consumption control method for a coal mine underground channel wave detector, which adopts the low power consumption control device for the coal mine underground channel wave detector as described above.

[0034] Compared with the prior art, the present invention has the following technical effects:

[0035] (I) The low power consumption control device of the present invention can reduce the power consumption of the channel wave detector in the coal mine, increase the working time of the channel wave detector in the coal mine, and improve the efficiency and accuracy of the channel wave detection construction in the coal mine.

[0036] (II) The low-power control device of the present invention is developed on the basis of the explosion-proof requirements of mining products. Voltage and current limiting protection is performed on each part of the circuit according to the explosion-proof requirements of coal mining products, and low-power design is performed on the basis of ensuring low power and lightness of the device. At the same time, key components are selected according to the explosion-proof requirements of coal mining products to ensure both device performance and low power consumption.

[0037] (III) The low power consumption control device and method of the present invention are designed according to the actual use conditions and use process of the slot wave detector in coal mines, combined with the specific construction process of slot wave detection in coal mines, aiming at the long-term operation of the power supply of the constant temperature crystal oscillator, the power supply of the acquisition part works after the acquisition time is reached, and the power supply of the data transmission part and the timing part does not work in the coal mine. The power supply of each part is designed and each functional power supply is started or shut down according to the working logic, thereby reducing the power consumption of the device.

[0038] (IV) The low-power control device of the present invention adopts an embedded Linux system for data management and transmission, which improves the stability of the device and the reliability and rate of data transmission.

[0039] (V) The low-power control device and method of the present invention designs different embedded programs according to different working logics and starts each function separately, so as to reduce the power consumption of the device. Different programs are entered according to user selections. The timing program is started after the timing button is pressed, the collection program is entered after the collection time is reached, and the configuration and data management program is started after the configuration button is pressed. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 A schematic diagram of a lithium battery pack.

[0041] Figure 2 Schematic diagram of chips U1, U2 and peripheral circuits in the battery protection circuit.

[0042] FIG3( a ) is a schematic diagram of the chip U3 and peripheral circuits in the power conversion and management circuit.

[0043] FIG3( b ) is a schematic diagram of the chip U4 and peripheral circuits in the power conversion and management circuit.

[0044] FIG3( c ) is a schematic diagram of the chip U5 and peripheral circuits in the power conversion and management circuit.

[0045] FIG3( d ) is a schematic diagram of the chip U6 and peripheral circuits in the power conversion and management circuit.

[0046] FIG4( a ) is a schematic diagram of chips U7 , U8 , U9 and peripheral circuits in the sequential circuit.

[0047] FIG4( b ) is a schematic diagram of the chip U10 and peripheral circuits in the sequential circuit.

[0048] FIG5(a) is a schematic diagram of the chips U11, U12 and peripheral circuits in the control circuit.

[0049] FIG5( b ) is a schematic diagram of the chip U13 and peripheral circuits in the control circuit.

[0050] Figure 6 This is a schematic diagram of chips U14, U15, U16, U17 and peripheral circuits in the acquisition circuit.

[0051] The specific contents of the present invention are further explained in detail below in conjunction with embodiments. DETAILED DESCRIPTION

[0052] It should be noted that, unless otherwise specified, all electronic components in the present invention are electronic components known in the prior art.

[0053] Specific embodiments of the present invention are given below. It should be noted that the present invention is not limited to the following specific embodiments, and all equivalent changes made on the basis of the technical solution of this application fall within the protection scope of the present invention.

[0054] Embodiment 1:

[0055] The present embodiment provides a low-power control device for a coal mine underground channel wave detector, including a lithium battery pack, characterized in that the lithium battery pack is connected to a battery protection circuit, the battery protection circuit is connected to a power conversion and management circuit, and the power conversion and management circuit is respectively connected to a timing circuit, a control circuit and an acquisition circuit of the coal mine underground channel wave detector for power supply.

[0056] like Figure 2 As shown, the battery protection circuit includes a chip U1, and an OUT port of the chip U1 is connected to an IN port of the chip U2.

[0057] like Figure 3(a) to Figure 3(d) As shown, the power conversion and management circuit includes chip U3 and chip U4. The VOUT port of chip U3 outputs 3.3V_Alive voltage; the VOUT port of chip U4 outputs +5V voltage; the VOUT port of chip U4 is also connected to the VIN port of chip U5 and the VIN port of chip U6 respectively, the VOUT port of chip U5 outputs 3.3V_ARM voltage; the VOUT port of chip U6 outputs 3.3V_STM voltage.

[0058] like Figure 4(a) to Figure 4(b)As shown, the timing circuit includes chip U7, chip U8 and chip U9, the GND port of chip U7 is grounded, the D port and CLK port of chip U8 are grounded, and the D port and CLK port of chip U9 are grounded; the Q port of chip U9 is connected to the X1 port of chip U10.

[0059] like Figure 5(a) to Figure 5(b) As shown, the control circuit includes a chip U11, the DAT[0] port of the chip U11 is connected to the DAT0 port of the chip U12, the DAT[1] port of the chip U11 is connected to the DAT1 port of the chip U12, the DAT[2] port of the chip U11 is connected to the DAT2 port of the chip U12, the DAT[3] port of the chip U11 is connected to the DAT3 port of the chip U12, the CMD port of the chip U11 is connected to the CMD port of the chip U12, the CLK port of the chip U11 is connected to the CLK port of the chip U12; the nCD port of the chip U12 is connected to the 1A port of the chip U13, and the WP port of the chip U12 is connected to the 2A port of the chip U13.

[0060] like Figure 6 As shown, the acquisition circuit includes chip U14, the TEMP port of chip U14 is connected to the TIN+ port of chip U15, and the VOUT port of chip U14 is connected to the REFIN port of chip U15; the CB0 port of chip U15 is connected to the CB0 port of chip U16, the CB1 port of chip U15 is connected to the CB1 port of chip U16, the CB2 port of chip U15 is connected to the CB2 port of chip U16, the CB3 port of chip U15 is connected to the CB3 port of chip U16, the CB4 port of chip U15 is connected to the CB4 port of chip U16, the MFLG port of chip U15 is connected to the MFLG port of chip U16, and the MDATA port of chip U15 is connected to the MDATA port of chip U16; the MCLK port of chip U15 is connected to the D port of chip U17, the MCLK port of chip U16 is connected to the S1 port of chip U17, and the PWRDN port of chip U16 is connected to the IN port of chip U17.

[0061] The output port of the lithium battery pack is connected to the IN port of the chip U1.

[0062] The OUT port of the chip U2 is connected to the VIN port of the chip U3 and the VIN port of the chip U4 respectively.

[0063] The VOUT port of chip U3 is respectively connected to the VCC port of chip U7, to the CLR port and the RR port of chip U8, to the VCC port of chip U10, and to the VCC port of chip U13.

[0064] The VOUT port of chip U4 is respectively connected to the VIN+ port of chip U14, to the +VA port of chip U15, to the VL port of chip U16, and to the VDD port of chip U17.

[0065] The VOUT port of chip U5 is connected to the VOUT port of chip U13. Ports and Port connection.

[0066] The VOUT port of the chip U6 is connected to the VDDH1 port, the VDDH2 port and the VDDC port of the chip U11 respectively.

[0067] Preferably, in the battery protection circuit, the chip U1 and the chip U2 are both MAX14573 chips.

[0068] Preferably, in the power conversion and management circuit of this embodiment, the chip U3 and the chip U4 both use the chip model LTM4623EY#PBF, and the chip U5 and the chip U6 both use the chip model TPS2553DVB.

[0069] Preferably, in the timing circuit, chip U7 uses a 16.384 MHz constant temperature crystal oscillator, chip U8 and chip U9 both use chips with model SN74HC74D, and chip U10 uses a chip with model DS1390.

[0070] Preferably, in the control circuit of this embodiment, the chip U11 adopts a chip of model FSSD07BQX, the chip U12 adopts an SD card socket, and the chip U13 adopts a chip of model SN74LVC2G125.

[0071] Preferably, in the acquisition circuit of this embodiment, chip U14 uses a chip with a model number of AD780, chip U15 uses a chip with a signal number of AD1555BP, chip U16 uses a chip with a model number of AD1556AS, and chip U17 uses a chip with a model number of ADG719.

[0072] Specifically, the lithium battery pack is used to provide power for the channel wave detector in the coal mine.

[0073] In this embodiment, preferably, Figure 1 As shown in the figure, the lithium battery pack consists of 3 parallel and 2 series lithium iron phosphate batteries with a single model of 26650, a nominal voltage of 3.2V, and a nominal capacity of 3Ah, which are sealed with a battery protection board. The battery pack is nominally 6.4V / 9Ah. In order to ensure the performance of the entire lithium battery pack, the nominal voltage and nominal capacity of each battery must be consistent.

[0074] Specifically, the battery protection circuit is used to implement overcharge protection, over-discharge protection, over-current protection and short-circuit protection for the lithium battery pack.

[0075] In this embodiment, preferably, Figure 2 As shown, the battery protection circuit includes resistor R4, resistor R5, resistor R6, resistor R7, resistor R8, resistor R10, resistor R11, resistor R12, resistor R13, resistor R14, resistor R15, resistor R16, capacitor C1, capacitor C2, capacitor C3, chip U1, and chip U2.

[0076] In this embodiment, preferably, the connection relationship and specific assignment of each electronic component in the battery protection circuit are as follows: Figure 2 shown.

[0077] Furthermore, the battery protection circuit adopts two-stage voltage and current limiting to provide power supply for various parts of the coal mine channel wave detector. The battery protection circuit can realize overvoltage protection, undervoltage protection and overcurrent protection to ensure the intrinsic safety of the coal mine channel wave detector circuit. According to the power requirements of various parts of the instrument, the overvoltage, undervoltage and overcurrent parameters can be adjusted by adjusting the resistance values ​​of resistors R5, R6, R11, R12, R13 and R7, R8, R14, R15, R16.

[0078] Specifically, the power conversion and management circuit is used to convert the voltage output by the lithium battery pack into the voltage required by the coal mine underground channel wave detector.

[0079] In this embodiment, the power conversion and management circuit is used to convert the 6.4V power output of the lithium battery pack into an intrinsically safe power output through a two-stage voltage limiting and current limiting protection circuit. The maximum open circuit voltage of the intrinsically safe power supply is not greater than 7.4V, and the maximum short-circuit current is not greater than 2.5A. The intrinsically safe power supply is converted into 3.3V_Alive, 3.3V_ARM, 3.3V_STM, +5V, and -5V power supplies through various levels of step-down conversion circuits for use in the clock circuit, embedded control circuit, and AD conversion circuit of the coal mine underground slot wave detector.

[0080] In this embodiment, preferably, Figure 3(a) to Figure 3(d)As shown, the power conversion and management circuit includes capacitor C8, capacitor C7, capacitor C9, capacitor C11, capacitor C10, capacitor C12, capacitor C13, capacitor C14, resistor R21, resistor R22, resistor R25, resistor R27, diode D2, diode D3, chip U3, resistor R28, resistor R29, resistor R37, resistor R39, capacitor C16, capacitor C15, capacitor C17, capacitor C19, capacitor C18, capacitor C20, capacitor C22, capacitor C23, diode D5, diode D6, chip U4, capacitor C27, resistor R42, resistor R43, resistor R45, chip U5, capacitor C26, resistor R40, resistor R41, resistor R44, chip U6.

[0081] In this embodiment, preferably, the connection relationship and specific assignment of each electronic component in the power conversion and management circuit are as follows: Figure 3(a) to Figure 3(d) shown.

[0082] Furthermore, the power conversion and management circuit realizes the power supply of each functional module of the coal mine underground channel wave detector, and performs conversion according to the voltage and current required by each functional module. According to the working logic of the coal mine underground channel wave detector, the power supply of each functional module is turned on or off respectively, so as to achieve low power consumption control of power output. On the one hand, the power conversion and management realizes the power supply of each part required by the coal mine underground channel wave detector, and on the other hand, it facilitates low power consumption control and management.

[0083] Specifically, the timing circuit is used to provide timing for a channel wave detector in a coal mine.

[0084] In this embodiment, a 16.384MHz crystal oscillator is used to provide a clock source, and then processed by a logic circuit to output 32768Hz and 8192KHz precise clocks, respectively, where 32768Hz provides a clock source for the clock device, and 8192KHz provides a stable clock source for the AD conversion circuit. The clock device provides accurate time information for the coal mine underground slot wave detector.

[0085] In this embodiment, preferably, Figure 4(a) to Figure 4(b) As shown, the timing circuit includes a resistor R4, a capacitor C7, a chip U7, a chip U8, a chip U9, a resistor R16, a capacitor C10, and a chip U10.

[0086] In this embodiment, preferably, the connection relationship and specific assignment of each electronic component in the timing circuit are as follows: Figure 4(a) to Figure 4(b) shown.

[0087] Furthermore, the timing circuit realizes the precise timing required by each part of the coal mine slot wave detector. A 16.384MHz constant temperature crystal oscillator is used to achieve high-precision and high-stability reference frequency output, and a logic circuit is used to provide different timings for the clock device and the AD conversion circuit. The constant temperature crystal oscillator and clock device of the timing circuit need to be powered all the time, and the clock required by the AD conversion circuit is only powered when the acquisition module is working. According to the working logic of the coal mine slot wave detector, it is convenient to control the timing part with low power consumption.

[0088] Specifically, the control circuit is used to use an embedded processor to realize the switching and management of the power supply of each part, as well as the low-power control of the circuit, to realize the control of the AD conversion circuit of the coal mine underground channel wave detector, and to realize the control of the data storage and transmission of the coal mine underground channel wave detector.

[0089] In this embodiment, the control circuit is used to use an embedded processor as the central control unit of the coal mine underground channel wave detector to realize collection, interruption, storage, transmission, and control of the working mechanism of the entire coal mine underground channel wave detector. It is the core of the coal mine underground channel wave detector.

[0090] In this embodiment, preferably, Figure 5(a) to Figure 5(b) As shown, the control circuit includes resistor R30, resistor R31, resistor R32, resistor R33, resistor R34, resistor R35, resistor R36, capacitor C42, capacitor C43, capacitor C44, chip U11, chip U12, and chip U13.

[0091] In this embodiment, preferably, the connection relationship and specific assignment of each electronic component in the control circuit are as follows: Figure 5(a) to Figure 5(b) shown.

[0092] Furthermore, the control circuit uses a low-power, high-performance embedded processor to start each functional module and manage the power supply of each part. The control signal is combined with the developed embedded program to realize the logical control of each part, ensuring that the coal mine underground channel wave detector works according to the designed workflow, and at the same time, each part of the function is started separately, so as to achieve low power consumption management of the entire device.

[0093] Specifically, the acquisition circuit is used to process the voltage signal output by the detector of the coal mine underground channel wave detector, and after shaping and filtering, amplifying and filtering, it is digitized through the AD converter device of the coal mine underground channel wave detector, and transmitted to the embedded processor in the control circuit of the coal mine underground channel wave detector through the SPI interface for processing.

[0094] In this embodiment, preferably, Figure 6As shown, the acquisition circuit includes resistor R1, resistor R2, resistor R3, resistor R4, resistor R5, capacitor C1, capacitor C2, capacitor C3, capacitor C4, capacitor C5, capacitor C6, capacitor C7, capacitor C8, capacitor C9, capacitor C10, capacitor C11, capacitor C12, capacitor C13, capacitor C14, capacitor C15, capacitor C16, chip U14, chip U15, chip U16, chip U17,

[0095] In this embodiment, preferably, the connection relationship and specific assignment of each electronic component in the acquisition circuit are as follows: Figure 6 shown.

[0096] Furthermore, the acquisition circuit realizes the signal acquisition and digitization of the coal mine channel wave detector, and a special protection circuit is designed for the signal output by the detector to prevent high voltage signals from entering the AD conversion circuit. In order to realize the independent acquisition and processing of multiple signals, a three-channel independent acquisition circuit is used to prevent interference between signals, effectively improve the quality of signal acquisition, and realize the parallel acquisition of three-channel signals.

[0097] Embodiment 2:

[0098] This embodiment provides a low power consumption control method for a coal mine underground channel wave detector. The method adopts the low power consumption control device for the coal mine underground channel wave detector provided in Example 1.

[0099] The method specifically comprises the following steps:

[0100] Step 1: Set different working modes of the coal mine channel wave detector, namely clock mode, standby mode, time synchronization mode, acquisition mode and configuration mode. The power consumption of the coal mine channel wave detector is different in different working modes.

[0101] In clock mode, the coal mine underground channel wave detector only has 3.3V_Alive output, which is provided to the crystal oscillator and clock chip. The other chips do not work, and the power consumption is minimal.

[0102] In standby mode, the embedded controller is in a low-power working state, only the interrupt part works, AD acquisition does not work, the coal mine underground slot wave detector only has 3.3V_Alive and 3.3V_STM outputs, and the coal mine underground slot wave detector has low power consumption.

[0103] In the time synchronization mode, the AD acquisition part of the coal mine underground channel wave detector does not work, the coal mine underground channel wave detector only has 3.3V_Alive and 3.3V_STM outputs, and the coal mine underground channel wave detector has low power consumption.

[0104] In the acquisition mode, the AD acquisition part of the coal mine underground channel wave detector starts working, the data transmission part of the coal mine underground channel wave detector does not work, and the coal mine underground channel wave detector has a high power consumption; in the configuration mode, the AD part of the coal mine underground channel wave detector does not work, but the data transmission part of the coal mine underground channel wave detector starts working, the coal mine underground channel wave detector starts the embedded Linux system, and the coal mine underground channel wave detector has the highest power consumption.

[0105] Step 2: The coal mine channel wave detector selects different working modes according to the actual working conditions to reduce the power consumption of the coal mine channel wave detector. According to the channel wave construction conditions, press different buttons to make the coal mine channel wave detector work in different modes.

[0106] Step 3: Before construction, according to the construction schedule, select the configuration mode on the ground to configure the working parameters of the coal mine slot wave detector. The working time of the coal mine slot wave detector in the configuration mode shall not exceed 2 minutes. Then select the time synchronization mode on the ground to synchronize the coal mine slot wave detector. The working time of the coal mine slot wave detector in the time synchronization mode shall not exceed 1 minute. After the synchronization is completed, the coal mine slot wave detector enters the clock mode. At this time, the coal mine slot wave detector has the lowest power consumption. After the slot wave detector is laid out underground, press the power button, and the coal mine slot wave detector works in the standby mode. At this time, the coal mine slot wave detector is in low power consumption mode. When the coal mine slot wave detector collection time arrives, the coal mine slot wave detector automatically enters the collection mode for data collection. At this time, the coal mine slot wave detector consumes a lot of power. After the collection is completed, the coal mine slot wave detector can be taken to the ground and enter the configuration mode for data transmission while charging. The working time of the coal mine slot wave detector will not be affected when charging and working. During the whole process of underground construction, the coal mine channel wave detector relies on its own battery to work. During the underground work, the coal mine channel wave detector layout process can be set to clock mode and standby mode to greatly reduce the power consumption of the coal mine channel wave detector and increase the working time of the coal mine channel wave detector. The coal mine channel wave detector automatically switches from standby mode to acquisition mode.

[0107] Step 4: The coal mine slot wave detector uses different signal controls in the power management part to start different power supplies. When the acquisition part needs to work, the AD control signal arrives and starts the AD power supply part; when the coal mine slot wave detector is in the configuration mode, the configuration control signal reaches the bottom and starts the power supply of the embedded Linux control part; when the coal mine slot wave detector is in the standby mode, the AD control signal and the configuration control signal do not work, so this part of the power supply does not work; when the coal mine slot wave detector is in the clock mode, only the 3.3V_Alive power supply is output, and the rest of the power supply is not output. According to different working modes, different signals are used to control the work of each part of the power supply to achieve low power consumption control of the coal mine slot wave detector and improve the working time of the coal mine slot wave detector.

Claims

1. A low power consumption control device for a channel wave detector in a coal mine, comprising a lithium battery pack, characterized in that: The lithium battery pack is connected to the battery protection circuit, the battery protection circuit is connected to the power conversion and management circuit, and the power conversion and management circuit are respectively connected to the timing circuit, control circuit and acquisition circuit of the coal mine underground slot wave detector for power supply.

2. The low power consumption control device of the coal mine channel wave detector according to claim 1, characterized in that: The battery protection circuit includes a chip U1, and the OUT port of the chip U1 is connected to the IN port of the chip U2; The power conversion and management circuit includes chip U3 and chip U4. The VOUT port of chip U3 outputs 3.3V_Alive voltage; the VOUT port of chip U4 outputs +5V voltage; the VOUT port of chip U4 is also connected to the VIN port of chip U5 and the VIN port of chip U6 respectively, the VOUT port of chip U5 outputs 3.3V_ARM voltage; the VOUT port of chip U6 outputs 3.3V_STM voltage.

3. The low power consumption control device of the coal mine channel wave detector according to claim 2, characterized in that: In the battery protection circuit, the chip U1 and the chip U2 are both MAX14573 chips; In the power conversion and management circuit, chip U3 and chip U4 both use chips with model LTM4623EY#PBF, and chip U5 and chip U6 both use chips with model TPS2553DVB.

4. The low power consumption control device for the coal mine channel wave detector according to claim 2, characterized in that: The timing circuit includes chips U7, U8 and U9, the GND port of chip U7 is grounded, the D port and CLK port of chip U8 are grounded, and the D port and CLK port of chip U9 are grounded; the Q port of chip U9 is connected to the X1 port of chip U10; The control circuit includes a chip U11, a DAT[0] port of the chip U11 connected to a DAT0 port of the chip U12, a DAT[1] port of the chip U11 connected to a DAT1 port of the chip U12, a DAT[2] port of the chip U11 connected to a DAT2 port of the chip U12, a DAT[3] port of the chip U11 connected to a DAT3 port of the chip U12, a CMD port of the chip U11 connected to a CMD port of the chip U12, and a CLK port of the chip U11 connected to a CLK port of the chip U12; the nCD port of the chip U12 connected to a 1A port of the chip U13, and the WP port of the chip U12 connected to a 2A port of the chip U13; The acquisition circuit includes chip U14, the TEMP port of chip U14 is connected to the TIN+ port of chip U15, the VOUT port of chip U14 is connected to the REFIN port of chip U15; the CB0 port of chip U15 is connected to the CB0 port of chip U16, the CB1 port of chip U15 is connected to the CB1 port of chip U16, the CB2 port of chip U15 is connected to the CB2 port of chip U16, the CB3 port of chip U15 is connected to the CB3 port of chip U16, the CB4 port of chip U15 is connected to the CB4 port of chip U16, the MFLG port of chip U15 is connected to the MFLG port of chip U16, and the MDATA port of chip U15 is connected to the MDATA port of chip U16; the MCLK port of chip U15 is connected to the D port of chip U17, the MCLK port of chip U16 is connected to the S1 port of chip U17, and the PWRDN port of chip U16 is connected to the IN port of chip U17.

5. The low power consumption control device for the coal mine channel wave detector according to claim 4, characterized in that: In the timing circuit, chip U7 uses a 16.384MHz constant temperature crystal oscillator, chips U8 and U9 both use chips with model SN74HC74D, and chip U10 uses a chip with model DS1390; In the control circuit, the chip U11 adopts a chip of model FSSD07BQX, the chip U12 adopts an SD card holder, and the chip U13 adopts a chip of model SN74LVC2G125; In the acquisition circuit, chip U14 uses a chip with a signal of AD780, chip U15 uses a chip with a signal of AD1555BP, chip U16 uses a chip with a signal of AD1556AS, and chip U17 uses a chip with a signal of ADG719.

6. The low power consumption control device for the coal mine channel wave detector according to claim 4, characterized in that: The output port of the lithium battery pack is connected to the IN port of the chip U1; The OUT port of the chip U2 is connected to the VIN port of the chip U3 and the VIN port of the chip U4 respectively; The VOUT port of the chip U3 is respectively connected to the VCC port of the chip U7, to the CLR port and the RR port of the chip U8, to the VCC port of the chip U10, and to the VCC port of the chip U13; The VOUT port of the chip U4 is respectively connected to the VIN+ port of the chip U14, to the +VA port of the chip U15, to the VL port of the chip U16, and to the VDD port of the chip U17; The VOUT port of the chip U5 is connected to the VOUT port of the chip U13. Ports and Port connection; The VOUT port of the chip U6 is connected to the VDDH1 port, the VDDH2 port and the VDDC port of the chip U11 respectively.

7. The low power consumption control device for the coal mine channel wave detector according to claim 1, characterized in that: The lithium battery pack is used to provide power for the channel wave detector in coal mines; The battery protection circuit is used to implement overcharge protection, over-discharge protection, over-current protection and short-circuit protection for the lithium battery pack; The power conversion and management circuit is used to convert the voltage output by the lithium battery pack into the voltage required by the coal mine underground channel wave detector.

8. The low power consumption control device for the coal mine channel wave detector according to claim 7, characterized in that: The timing circuit is used to provide timing for the channel wave detector in coal mines; The control circuit is used to realize the switching and management of the power supply of each part and the low power consumption control of the circuit by using an embedded processor, realize the control of the AD conversion circuit of the coal mine underground channel wave detector and realize the control of the data storage and transmission of the coal mine underground channel wave detector; The acquisition circuit is used to digitize the voltage signal output by the detector of the coal mine underground channel wave detector after shaping and filtering, and then amplifying and filtering, through the AD converter of the coal mine underground channel wave detector, and transmit it to the embedded processor in the control circuit of the coal mine underground channel wave detector through the SPI interface for processing.

9. A low power consumption control method for a coal mine channel wave detector, the method adopting the low power consumption control device for a coal mine channel wave detector as claimed in any one of claims 1 to 8.

Images