CN209777989U - mine hoist wireless tester based on ZigBee - Google Patents
mine hoist wireless tester based on ZigBee Download PDFInfo
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- CN209777989U CN209777989U CN201920610630.9U CN201920610630U CN209777989U CN 209777989 U CN209777989 U CN 209777989U CN 201920610630 U CN201920610630 U CN 201920610630U CN 209777989 U CN209777989 U CN 209777989U
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Abstract
The utility model discloses a mine winder wireless tester based on zigBee, include: the wireless pressure sensor, the wireless piezoelectric current collector, wireless displacement sensor, wireless speed sensor, wireless humiture atmospheric pressure sensor, wireless pressure touch sensor, wireless tension sensor, wireless time-recorder, PC transceiver. The utility model discloses a mine winder wireless tester based on zigBee, can with wireless pressure sensor, wireless electric current collector, wireless displacement sensor, wireless speedtransmitter, wireless humiture atmospheric pressure sensor, wireless force sensor, wireless time-recorder wireless connection, receive the mine winder stator voltage that its lifting machine that sends respectively sent simultaneously, the operating voltage electric current, up-down displacement, go up down the speed, work humiture atmospheric pressure, pulling force signal, have, the simple beneficial effect of wiring, set up the power amplifier simultaneously, wireless transmission distance has been improved greatly.
Description
Technical Field
the utility model relates to a testing arrangement of lifting machine for mine, concretely relates to wireless tester of mine lifting machine based on zigBee.
background
the mine hoist is a large mechanical device for hoisting mine materials, mainly comprises a motor, a reducer, a friction wheel, a braking system, a depth indicating system, a speed measuring and limiting system and the like, and is driven by an alternating current or direct current motor to drive a steel wire rope so as to drive a container to lift in a shaft, thereby completing the hoisting and conveying tasks. Modern mine hoists have large hoisting capacity and high speed, and are developed into full-automatic heavy mining machinery controlled by an electronic computer.
The motor in the elevator is connected with the power supply through a cable to supply power and drive, so that monitoring of various working parameters of the stator of the elevator is very important, the existing old sensor is connected with a PC host through a wire, wiring is complex, transmission distance is limited, data cannot be analyzed in real time, and improvement is urgently needed.
SUMMERY OF THE UTILITY MODEL
in order to solve the technical problem, the utility model provides a mine winder wireless tester based on zigBee. The utility model discloses a mine winder wireless tester based on zigBee, can with wireless pressure sensor, wireless electric current collector, wireless displacement sensor, wireless speedtransmitter, wireless humiture atmospheric pressure sensor, wireless force sensor, wireless time-recorder wireless connection, receive the mine winder stator voltage that its lifting machine that sends respectively sent simultaneously, the operating voltage electric current, up-down displacement, go up down the speed, work humiture atmospheric pressure, pulling force signal, have, the simple beneficial effect of wiring, set up the power amplifier simultaneously, wireless transmission distance has been improved greatly.
In order to achieve the above purpose, the technical scheme of the utility model is as follows:
A mine hoist wireless tester based on zigBee includes:
The wireless pressure sensor, the wireless piezoelectric current collector, the wireless displacement sensor, the wireless speed sensor, the wireless temperature and humidity atmospheric pressure sensor, the wireless tension sensor and the wireless timer are respectively installed on the mine hoist and are respectively internally provided with a first wireless communication module, and the first wireless communication module adopts a Z-0004ZigBee wireless module;
The PC transceiver is internally provided with a second wireless communication module, the second wireless communication module adopts a CC253X series ZigBee module, and the second wireless communication module and the first wireless communication module form a ZigBee 2.4G wireless communication network, and are used for sending working instructions to the wireless voltage sensor, the wireless voltage current collector, the wireless displacement sensor, the wireless speed sensor, the wireless temperature and humidity atmospheric pressure sensor, the wireless tension sensor and the wireless timer, and receiving the stator voltage and the working voltage current of the mine hoist respectively sent by the mine hoist. Up-down displacement, up-down speed, working temperature, humidity, atmospheric pressure, pressure and tension signals.
Further, the wireless voltage sensor, the wireless voltage current collector, the wireless displacement sensor, the wireless speed sensor, the wireless temperature and humidity atmospheric pressure sensor, the wireless tension sensor and the wireless timer respectively comprise a power module, and the power module comprises a 3.7V lithium battery charging and discharging interface, a TP4054 series charging manager and an SP6201 series voltage stabilizing regulator, and is used for providing 3.3V working voltage.
further the wireless voltage sensor further comprises: the voltage sensor module and the first singlechip main control module;
the voltage sensor module adopts a voltage acquisition isolator of a TEM6650 series;
the first singlechip main control module comprises a C8051F350 series singlechip and a minimum system thereof, and the serial port of the Z-0004ZigBee wireless module is connected with the C8051F350 series singlechip;
the power supply module also comprises a REF5030 reference voltage which is used for providing 3V reference voltage for the C8051F350 series single chip microcomputer.
further, the wireless voltage current collector comprises a voltage current collecting module and a serial port communication module,
the voltage and current acquisition module adopts a TLP281 optical coupler circuit and is connected with the serial port communication module through a TLP181 optical coupler, and the serial port communication module adopts a serial port communication chip with the model number of MAX3485 to be connected with the Z-0004ZigBee wireless module.
furthermore, the wireless displacement sensor also comprises a displacement sensor and a signal processing module;
the displacement sensor is connected with the Z-0004ZigBee wireless module through a signal processing module;
the power supply module further comprises a REF5030 reference voltage which is used for providing 3V reference voltage for the Z-0004ZigBee wireless module.
further, the wireless temperature, humidity and atmospheric pressure sensor comprises a temperature, humidity and atmospheric pressure sensor and a second singlechip main control module;
the temperature, humidity and atmospheric pressure sensor module adopts a TEM6650 series temperature, humidity and atmospheric pressure sensor with the model number of MS 5607;
the second singlechip main control module comprises an STM32F030C8T6 series singlechip and a minimum system thereof, and the serial port of the Z-0004ZigBee wireless module is connected with the STM32F030C8T6 series singlechip;
the power supply module also comprises a REF5030 reference voltage which is used for providing 3V reference voltage for the C8051F350 series single chip microcomputer.
further, the wireless pressure sensor further comprises: the pressure sensor module and the third singlechip main control module;
the voltage sensor module adopts a piezoresistor;
the third singlechip main control module comprises a C8051F350 series singlechip and a minimum system thereof, and the serial port of the Z-0004ZigBee wireless module is connected with the C8051F350 series singlechip;
The power supply module also comprises a REF5030 reference voltage which is used for providing 3V reference voltage for the C8051F350 series single chip microcomputer.
furthermore, the wireless tension sensor also comprises a tension sensor, an analog-to-digital conversion module and a fourth-year singlechip main control module;
the tension sensor module adopts a piezoresistor;
The analog-to-digital conversion module adopts a CS1168 series A/D converter;
The fourth singlechip main control module comprises an STC90C58AD series singlechip and a minimum system thereof, the conversion output of the CS1168 series A/D converter is connected with the STC90C58AD series singlechip, the serial port of the Z-0004ZigBee wireless module is connected with the STC90C58AD series singlechip,
the power supply module also comprises a MIC5207 reference voltage which provides a 3.3V reference voltage for the CS1168 series A/D converter.
The wireless timer further comprises a trigger module and a fifth singlechip main control module;
the trigger module adopts 74HC14D Schmitt trigger inverters to be respectively connected with each phase power line of the elevator;
the fifth singlechip main control module comprises STM32F030C8T6 series singlechips and a minimum system thereof, the output end of a 74HC14D Schmitt trigger phase inverter is connected with the I/O port of the STM32F030C8T6 series singlechips, and the serial port of the Z-0004ZigBee wireless module is connected with the STM32F030C8T6 series singlechips.
further, the second wireless communication module adopts a CC253X series ZigBee module.
as a preferred embodiment of the present invention, based on the above, the difference is that the power amplifier with model CC2591 is provided, and the ZigBee module of CC253X series is connected and provided. CC2591 adds the power amplifier for the second wireless communication module, has improved the PA gain, has realized long-range wireless transmission.
The beneficial effects of the utility model reside in that:
The utility model discloses a mine winder wireless tester based on zigBee, can with wireless pressure sensor, wireless electric current collector, wireless displacement sensor, wireless speedtransmitter, wireless humiture atmospheric pressure sensor, wireless force sensor, wireless time-recorder wireless connection, receive the mine winder stator voltage that its lifting machine that sends respectively sent simultaneously, the operating voltage electric current, up-down displacement, up-down speed, work humiture atmospheric pressure, pulling force signal, have the simple beneficial effect of wiring, set up the power amplifier on the PC transceiver simultaneously, wireless transmission distance has been improved greatly.
drawings
Fig. 1 is a schematic view of a modular structure of the wireless flexible current sensor of the present invention;
Fig. 2 is a schematic circuit diagram of the power module of the present invention;
fig. 3 is a circuit diagram of a first wireless module according to the present invention;
Fig. 4 is a schematic diagram of a wireless voltage sensor module according to the present invention;
fig. 5 is a schematic diagram of the voltage sensor circuit of the present invention;
fig. 6 is a schematic circuit diagram of a first single-chip microcomputer main control module of the present invention;
Fig. 7 is a schematic diagram of a REF5030 reference voltage circuit of the present invention;
fig. 8 is a schematic diagram of the principle of the wireless piezoelectric current collector module of the present invention;
fig. 9 is a schematic circuit diagram of the voltage and current collection module of the present invention;
Fig. 10 is a schematic circuit diagram of the serial communication module of the present invention;
FIG. 11 is a schematic diagram of the module principle of the wireless displacement collector of the present invention;
Fig. 12 is a schematic circuit diagram of the signal processing module of the present invention;
fig. 13 is a schematic diagram of the wireless temperature, humidity and atmospheric pressure collector module of the present invention;
fig. 14 is a schematic circuit diagram of the wireless temperature, humidity and atmospheric pressure sensor of the present invention;
fig. 15 is a schematic circuit diagram of a second single-chip microcomputer main control module of the present invention;
FIG. 16 is a schematic diagram of the module of the wireless pressure collector of the present invention;
Fig. 17 is a schematic diagram of the pressure sensor circuit of the present invention;
fig. 18 is a schematic circuit diagram of a third single-chip microcomputer main control module of the present invention;
Fig. 19 is a schematic diagram of the module principle of the wireless tension collector of the present invention;
Fig. 20 is a schematic diagram of the circuit principle of the wireless tension collector of the utility model;
Fig. 21 is a schematic view of the modular structure of the wireless timepiece of the present invention;
Fig. 22 is a schematic circuit diagram of a flip-flop module of the present invention;
Fig. 23 is a schematic circuit diagram of a fifth single-chip microcomputer main control module;
Fig. 24 is a schematic diagram of a modular structure of the PC transceiver of the present invention;
Fig. 25 is a schematic circuit diagram of a second wireless communication module according to the present invention.
Detailed Description
Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
A ZigBee-based wireless tester of a mine hoist, as shown in fig. 1, comprising:
the wireless pressure sensor, the wireless piezoelectric current collector, the wireless displacement sensor, the wireless speed sensor, the wireless temperature and humidity atmospheric pressure sensor, the wireless tension sensor and the wireless timer are respectively installed on the mine hoist, and a first wireless communication module is respectively arranged in the wireless pressure sensor, the wireless displacement sensor, the wireless speed sensor, the wireless temperature and humidity atmospheric pressure sensor, the wireless tension sensor and the wireless timer, as shown in fig. 3, and adopts a Z-0004ZigBee wireless module;
The PC transceiver is internally provided with a second wireless communication module, the second wireless communication module adopts a CC253X series ZigBee module, and forms a ZigBee 2.4G wireless communication network with the first wireless communication module, so that the second wireless communication module is used for sending working instructions to the wireless voltage sensor, the wireless voltage current collector, the wireless displacement sensor, the wireless speed sensor, the wireless temperature and humidity atmospheric pressure sensor, the wireless tension sensor and the wireless timer, and simultaneously receiving mine hoist stator voltage, working voltage current, uplink and downlink displacement, uplink and downlink speed, working temperature and humidity atmospheric pressure, pressure and tension signals sent by the hoist respectively.
further, as shown in fig. 2, the wireless voltage sensor, the wireless piezoelectric current collector, the wireless displacement sensor, the wireless speed sensor, the wireless temperature and humidity atmospheric pressure sensor, the wireless tension sensor and the wireless timer respectively comprise a power module, and the power module comprises a 3.7V lithium battery charging and discharging interface, a TP4054 series charging manager and an SP6201 series voltage stabilizing regulator, and is used for providing 3.3V working voltage and supporting power supply of each series of single-chip microcomputers and the first communication module.
Further, as shown in fig. 4, the wireless voltage sensor further includes: the voltage sensor module and the first singlechip main control module;
the voltage sensor module adopts a voltage acquisition isolator of a TEM6650 series;
the first singlechip main control module comprises a C8051F350 series singlechip and a minimum system thereof, and the serial port of the Z-0004ZigBee wireless module is connected with the C8051F350 series singlechip;
as shown in fig. 7, the power supply module further includes a REF5030 reference voltage, which provides a 3V reference voltage for the C8051F 350-series single chip microcomputer and supports a self-contained a/D conversion in the C8051F 350-series single chip microcomputer. As shown in fig. 5 and 6, the stator voltage collected by the voltage collecting isolator is transmitted to the Z-0004ZigBee wireless module through the a/D conversion of the C8051F350 series single chip microcomputer through the serial port, and is finally uploaded to the PC through the 2.4G network between the Z-0004ZigBee wireless module and the second communication module.
further, as shown in fig. 8, the wireless voltage and current collector includes a voltage and current collecting module and a serial communication module,
the voltage and current acquisition module adopts a TLP281 optical coupler circuit and is connected with the serial port communication module through a TLP181 optical coupler, and the serial port communication module adopts a serial port communication chip with the model number of MAX3485 to be connected with the Z-0004ZigBee wireless module. As shown in fig. 9 and 10, unlike the above-described wireless voltage sensor, the wireless voltage current collector simultaneously performs a/D conversion and wireless data transmission to a PC transceiver using a Z-0004ZigBee wireless module.
further, as shown in fig. 11, the wireless displacement sensor further includes a displacement sensor and a signal processing module;
As shown in fig. 12, the displacement sensor is connected to the Z-0004ZigBee wireless module through a signal processing module; the wireless displacement sensor simultaneously completes A/D conversion and wireless data transmission to the PC transceiver by using the Z-0004ZigBee wireless module.
The power supply module further comprises a REF5030 reference voltage which is used for providing 3V reference voltage for the Z-0004ZigBee wireless module.
Further, as shown in fig. 13, the wireless temperature, humidity and atmospheric pressure sensor includes a temperature, humidity and atmospheric pressure sensor and a second single-chip microcomputer main control module;
As shown in fig. 14 and 15, the temperature, humidity and atmospheric pressure sensor module adopts a TEM6650 series temperature, humidity and atmospheric pressure sensor with a model number of MS 5607;
the second singlechip main control module comprises an STM32F030C8T6 series singlechip and a minimum system thereof, and the serial port of the Z-0004ZigBee wireless module is connected with the STM32F030C8T6 series singlechip;
the power supply module also comprises a REF5030 reference voltage which is used for providing 3V reference voltage for the C8051F350 series single chip microcomputer.
further, as shown in fig. 16, the wireless pressure sensor further includes: the pressure sensor module and the third singlechip main control module;
As shown in fig. 17 and 18, the voltage sensor module employs a varistor;
The third singlechip main control module comprises a C8051F350 series singlechip and a minimum system thereof, and the serial port of the Z-0004ZigBee wireless module is connected with the C8051F350 series singlechip;
the power supply module also comprises a REF5030 reference voltage which is used for providing 3V reference voltage for the C8051F350 series single chip microcomputer.
further, as shown in fig. 19, the wireless tension sensor further includes a tension sensor, an analog-to-digital conversion module, and a fourth-year-round single-chip microcomputer main control module;
As shown in fig. 20, the tension sensor module employs a piezo-resistor;
The analog-to-digital conversion module adopts a CS1168 series A/D converter;
the fourth singlechip main control module comprises an STC90C58AD series singlechip and a minimum system thereof, the conversion output of the CS1168 series A/D converter is connected with the STC90C58AD series singlechip, the serial port of the Z-0004ZigBee wireless module is connected with the STC90C58AD series singlechip,
The power supply module also comprises a MIC5207 reference voltage which provides a 3.3V reference voltage for the CS1168 series A/D converter. Different from the wireless pressure sensor, the wireless tension sensor adopts an external CS1168 series A/D converter to perform A/D conversion, and does not occupy STC90C58AD series single chip microcomputer resources.
further, as shown in fig. 21, the wireless timer further includes a trigger module and a fifth single-chip microcomputer main control module;
as shown in fig. 22 and 23, the trigger module adopts 74HC14D schmitt trigger inverters to be respectively connected with each phase power line of the elevator;
the fifth singlechip main control module comprises STM32F030C8T6 series singlechips and a minimum system thereof, the output end of a 74HC14D Schmitt trigger phase inverter is connected with the I/O port of the STM32F030C8T6 series singlechips, and the serial port of the Z-0004ZigBee wireless module is connected with the STM32F030C8T6 series singlechips. After any opposite elevator is electrified, the 74HC14D Schmitt trigger inverter triggers the STM32F030C8T6 series single-chip microcomputer, and the working frequency provided by the oscillator is used for timing.
Further, as shown in fig. 24, the PC transceiver further includes:
and the PC interface conversion module is used for data transmission between the second wireless communication module and the PC. Preferably, the PC interface conversion module adopts an RS232 serial port-to-USB converter, one end of the RS232 serial port-to-USB converter is connected with the second wireless communication module through a serial port, the other end of the RS232 serial port-to-USB converter is connected with a PC through a USB interface, and the stator current value is collected in real time through the setting of an upper computer in the PC.
further, the second wireless communication module adopts a CC253X series ZigBee module.
as a preferred embodiment of the present invention, based on the above, the difference is that, as shown in fig. 25, a power amplifier with model CC2591 is provided, and the CC253X series ZigBee module is connected. CC2591 adds the power amplifier for the second wireless communication module, has improved the PA gain, has realized long-range wireless transmission.
although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. the utility model provides a mine winder wireless tester based on zigBee which characterized in that includes:
the wireless pressure sensor, the wireless piezoelectric current collector, the wireless displacement sensor, the wireless speed sensor, the wireless temperature and humidity atmospheric pressure sensor, the wireless tension sensor and the wireless timer are respectively installed on the mine hoist and are respectively internally provided with a first wireless communication module, and the first wireless communication module adopts a Z-0004ZigBee wireless module;
the PC transceiver is internally provided with a second wireless communication module, the second wireless communication module adopts a CC253X series ZigBee module, and forms a ZigBee 2.4G wireless communication network with the first wireless communication module, so that the second wireless communication module is used for sending working instructions to the wireless voltage sensor, the wireless voltage current collector, the wireless displacement sensor, the wireless speed sensor, the wireless temperature and humidity atmospheric pressure sensor, the wireless tension sensor and the wireless timer, and simultaneously receiving mine hoist stator voltage, working voltage current, uplink and downlink displacement, uplink and downlink speed, working temperature and humidity atmospheric pressure, pressure and tension signals sent by the hoist respectively.
2. the ZigBee-based wireless tester for the mine hoist according to claim 1, wherein the wireless voltage sensor, the wireless piezoelectric current collector, the wireless displacement sensor, the wireless speed sensor, the wireless temperature and humidity atmospheric pressure sensor, the wireless tension sensor and the wireless timer respectively comprise a power module, and the power module comprises a 3.7V lithium battery charging and discharging interface, a TP4054 series charging manager and an SP6201 series voltage stabilizing regulator, and is used for providing 3.3V working voltage.
3. the ZigBee-based wireless tester of mine hoist according to claim 2, wherein the wireless voltage sensor further comprises: the voltage sensor module and the first singlechip main control module;
the voltage sensor module adopts a voltage acquisition isolator of a TEM6650 series;
The first singlechip main control module comprises a C8051F350 series singlechip and a minimum system thereof, and the serial port of the Z-0004ZigBee wireless module is connected with the C8051F350 series singlechip;
the power supply module also comprises a REF5030 reference voltage which is used for providing 3V reference voltage for the C8051F350 series single chip microcomputer.
4. the ZigBee-based mine hoist wireless tester as claimed in claim 2, wherein the wireless voltage current collector comprises a voltage current collecting module, a serial communication module,
the voltage and current acquisition module adopts a TLP281 optical coupler circuit and is connected with the serial port communication module through a TLP181 optical coupler, and the serial port communication module adopts a serial port communication chip with the model number of MAX3485 to be connected with the Z-0004ZigBee wireless module.
5. The ZigBee-based mine hoist wireless tester as claimed in claim 2, wherein the wireless displacement sensor further comprises a displacement sensor, a signal processing module;
The displacement sensor is connected with the Z-0004ZigBee wireless module through a signal processing module;
The power supply module further comprises a REF5030 reference voltage which is used for providing 3V reference voltage for the Z-0004ZigBee wireless module.
6. the ZigBee-based mine hoist wireless tester as claimed in claim 2, wherein the wireless temperature, humidity and atmospheric pressure sensor comprises a temperature, humidity and atmospheric pressure sensor and a second single-chip microcomputer main control module;
the temperature, humidity and atmospheric pressure sensor module adopts a TEM6650 series temperature, humidity and atmospheric pressure sensor with the model number of MS 5607;
the second singlechip main control module comprises an STM32F030C8T6 series singlechip and a minimum system thereof, and the serial port of the Z-0004ZigBee wireless module is connected with the STM32F030C8T6 series singlechip;
The power supply module also comprises a REF5030 reference voltage which is used for providing 3V reference voltage for the C8051F350 series single chip microcomputer.
7. The ZigBee-based wireless tester of the mine hoist according to claim 2, wherein the wireless pressure sensor further comprises: the pressure sensor module and the third singlechip main control module;
the voltage sensor module adopts a piezoresistor;
The third singlechip main control module comprises a C8051F350 series singlechip and a minimum system thereof, and the serial port of the Z-0004ZigBee wireless module is connected with the C8051F350 series singlechip;
the power supply module also comprises a REF5030 reference voltage which is used for providing 3V reference voltage for the C8051F350 series single chip microcomputer.
8. the ZigBee-based mine hoist wireless tester as claimed in claim 2, wherein the wireless tension sensor further comprises a tension sensor, an analog-to-digital conversion module, and a fourth-year singlechip main control module;
the tension sensor module adopts a piezoresistor;
the analog-to-digital conversion module adopts a CS1168 series A/D converter;
the fourth singlechip main control module comprises an STC90C58AD series singlechip and a minimum system thereof, the conversion output of the CS1168 series A/D converter is connected with the STC90C58AD series singlechip, the serial port of the Z-0004ZigBee wireless module is connected with the STC90C58AD series singlechip,
The power supply module also comprises a MIC5207 reference voltage which provides a 3.3V reference voltage for the CS1168 series A/D converter.
9. The ZigBee-based mine hoist wireless tester as claimed in claim 2, wherein the wireless timer further comprises a trigger module, a fifth single chip microcomputer main control module;
the trigger module adopts 74HC14D Schmitt trigger inverters to be respectively connected with each phase power line of the elevator;
the fifth singlechip main control module comprises STM32F030C8T6 series singlechips and a minimum system thereof, the output end of a 74HC14D Schmitt trigger phase inverter is connected with the I/O port of the STM32F030C8T6 series singlechips, and the serial port of the Z-0004ZigBee wireless module is connected with the STM32F030C8T6 series singlechips.
10. the ZigBee-based mine hoist wireless tester of claim 1, wherein the PC transceiver further comprises:
the PC interface conversion module is used for data transmission between the second wireless communication module and the PC; and the power amplifier with the model number of CC2591 is connected with the CC253X series ZigBee module.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920610630.9U CN209777989U (en) | 2019-04-30 | 2019-04-30 | mine hoist wireless tester based on ZigBee |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920610630.9U CN209777989U (en) | 2019-04-30 | 2019-04-30 | mine hoist wireless tester based on ZigBee |
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| CN209777989U true CN209777989U (en) | 2019-12-13 |
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| CN201920610630.9U Active CN209777989U (en) | 2019-04-30 | 2019-04-30 | mine hoist wireless tester based on ZigBee |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Wireless testing instrument for mine hoist based on ZigBee Effective date of registration: 20200814 Granted publication date: 20191213 Pledgee: Bank of China Limited by Share Ltd. Xuzhou Copper Mt branch Pledgor: XUZHOU KUANGYI AUTOMATION TECHNOLOGY Co.,Ltd. Registration number: Y2020320000183 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |