CN-224203420-U - Ultrasonic ranging, positioning and alarming device for electric power safety appliance

CN224203420UCN 224203420 UCN224203420 UCN 224203420UCN-224203420-U

Abstract

An ultrasonic ranging, positioning and alarming device for an electric power safety tool relates to the technical field of electric power safety tools. The ultrasonic ranging positioning alarm device consists of an ultrasonic sensor module, a buzzer alarm module, a key control module and a nixie tube display module which are all communicated with a main controller module, wherein the ultrasonic sensor module is used for measuring the distance, the key control module is used for setting the safety distance and displaying the safety distance through the nixie tube display module, and when the main controller module judges that the measuring distance is smaller than the set safety distance, the buzzer alarm module starts alarm. This an ultrasonic ranging location alarm device for electric power security apparatus is through core functions such as real-time ultrasonic ranging location, preset safety warning distance, effectively solves the problem that exists in the present electric power system live working with electrified body distance is ambiguous, equipment position is difficult to accurate location to the realization is showing the promotion to operating personnel factor of safety, but also can optimize live working's work efficiency simultaneously.

Inventors

Zhu Xindu
XU HUI
LIU HANGTIAN
WANG ZIZHOU
Lv Qiutong
Xiong Beini
LONG PENG
SHEN WENTAO
Deng Jiayue
ZHANG YAO
ZHANG HAOXIANG
JIN YIMING
TANG ZIXIANG
MENG ZILONG

Assignees

朱新督

Dates

Publication Date: 20260505
Application Date: 20250426

Claims (8)

1. The ultrasonic ranging, positioning and alarming device for the electric power safety appliance is characterized by comprising an ultrasonic sensor module, a buzzer alarm module, a key control module and a nixie tube display module which are all communicated with a main controller module, wherein the ultrasonic sensor module is used for measuring the distance, the key control module is used for setting the safety distance and displaying the safety distance through the nixie tube display module, and when the main controller module judges that the measuring distance is smaller than the set safety distance, the buzzer alarm module starts alarming.
2. The ultrasonic ranging, positioning and alarming device for electric safety appliances according to claim 1, wherein the main controller module adopts an STC89C52 single chip microcomputer as a core control unit, and when the measured distance is smaller than the set distance, the main control chip compares the measured value with the set value and then controls the buzzer to alarm.
3. The ultrasonic ranging, positioning and alarming device for electric safety equipment according to claim 1, wherein the ultrasonic ranging, positioning and alarming device is powered by a No. 1 14500 lithium battery of 4.5V.
4. The ultrasonic ranging and positioning alarm device for electric safety appliances according to claim 1, wherein the ultrasonic sensor module adopts an HC-SR04 ultrasonic module to provide a non-contact distance sensing function of 2cm-400cm, and the ranging accuracy can reach up to 3mm.
5. The ultrasonic ranging, positioning and alarming device for the electric safety appliance according to claim 4, wherein the ultrasonic sensor module adopts an IO port TRIG to trigger ranging to high level signals of at least 10us, the module automatically sends 8 square waves of 40khz, automatically detects whether signals return, outputs a high level through an IO port ECHO when the signals return, and the duration of the high level is the time from the emission to the return of ultrasonic waves, and the test distance is = (high level time is equal to sound velocity)/2; The using method of the ultrasonic detection module HC-SR04 comprises the following steps of triggering an IO port, starting measurement for high level of at least 10us of the Trig port, automatically sending 8 square waves of 40Khz by the module, automatically detecting whether a signal returns, outputting a high level by the IO port Echo when the signal returns, wherein the duration of the high level is the time from the emission to the return of ultrasonic waves, and the test distance= (the high level time is 340)/2, wherein the unit is m; in the implementation, a timer (0) is adopted for timing measurement, 8 frequency division is carried out, TCNTT0 preset value 0XCE is carried out, 125ms is obtained when 2500 times of overflow interruption of the timer0 occur, and the calculation formula is as follows: t= (number of timer (0) overflows (0 XFF-0 XCE))/1000 The initial value calculation of the timer (0) is different according to different frequency division, and the unit of T is ms.
6. The ultrasonic ranging and positioning alarm device for electric safety equipment according to claim 1, wherein the main controller module is provided with a clock circuit, XTAL1 and XTAL2 are respectively input and output of an inverting amplifier configured as an on-chip oscillator, and since one machine cycle contains 6 state cycles and each state cycle is 2 oscillation cycles, one machine cycle has 12 oscillation cycles in total, and if the oscillation frequency of the external quartz crystal oscillator is 12MHZ, one oscillation cycle is 1/12us, and one machine cycle is 1us.
7. The ultrasonic ranging, positioning and alarming device for the electric safety appliance according to claim 1, wherein the main controller module is provided with an automatic RESET circuit, the RESET method generally comprises power-on automatic RESET and manual RESET of an external key, the single chip microcomputer can complete RESET operation when a high level of 2 machine periods is continuously given at a RESET end after the clock circuit works, and when the crystal oscillator frequency is 12MHz, for example, the duration of a RESET signal is not less than 2us.
8. The ultrasonic ranging, positioning and alarming device for electric safety equipment according to claim 1, wherein the buzzer alarming module is connected to a P13 pin of the singlechip by a Speaker, a triode and a resistor to form an audible alarming circuit.

Description

Ultrasonic ranging, positioning and alarming device for electric power safety appliance Technical Field The utility model relates to the technical field of electric safety appliances, in particular to an ultrasonic ranging positioning alarm device for the electric safety appliances, which is used for positioning the position of the electric safety appliances during working and measuring the distance of the position around equipment. Background The consumption of the electric power serving as a core energy source is in an exponentially growing situation, but the construction and operation maintenance of the electric power infrastructure is under unprecedented pressure. Under the background, the live working technology has become a preferred scheme for overhauling and maintaining the power transmission line by virtue of the advantages of no power failure, high working efficiency, remarkable social benefit and the like. However, the specificity of live working determines that it presents a high safety risk. According to the statistical analysis of accidents of the national power grid company in the last three years, the personal casualties caused by the fact that the personal casualties are mistakenly entered into a strong electric field and the safety distance is insufficient account for 63.4% of the total amount of live working accidents. Therefore, in the field of high-voltage live line maintenance and overhaul, it is particularly important to integrate a positioning device with real-time visualization of distance and settable alarm distance on a live working tool. The working principle of the ultrasonic ranging device is that an ultrasonic pulse is first transmitted and then the pulse is waited for to be reflected back from the target object. And according to the sound velocity and the time difference, calculating the distance from the ultrasonic wave emission point to the object through a formula. Based on the problems that the distance between the ultrasonic ranging and positioning alarm device and a charged body is not clear, the equipment position is difficult to accurately position and the like in live working of a power system are solved. Disclosure of utility model The utility model aims to provide an ultrasonic ranging, positioning and alarming device for an electric power safety appliance, which solves the problems that the distance between the ultrasonic ranging, positioning and alarming device and a charged body is not clear, the equipment position is difficult to accurately position and the like in the live working of the existing electric power system. In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows: The ultrasonic ranging, positioning and alarming device for the electric power safety appliance is characterized by comprising an ultrasonic sensor module, a buzzer alarm module, a key control module and a nixie tube display module which are all communicated with a main controller module, wherein the ultrasonic sensor module is used for measuring the distance, the key control module is used for setting the safety distance and displaying the safety distance through the nixie tube display module, and when the main controller module judges that the measuring distance is smaller than the set safety distance, the buzzer alarm module starts alarming. As a preferable technical scheme of the utility model, the main controller module adopts an STC89C52 singlechip as a core control unit, and when the measured distance is smaller than the set distance, the main control chip compares the measured value with the set value and then controls the buzzer to alarm. As a preferred technical scheme of the utility model, the main controller module is provided with a clock circuit, XTAL1 and XTAL2 are respectively input and output of an inverting amplifier, and the inverting amplifier is configured as an on-chip oscillator, and since one machine period comprises 6 state periods and each state period is 2 oscillation periods, 12 oscillation periods are total for one machine period, and if the oscillation frequency of an external quartz crystal oscillator is 12MHZ, one oscillation period is 1/12us, and one machine period is 1us. As a preferable technical scheme of the utility model, the main controller module is provided with an automatic RESET circuit, the RESET method generally comprises power-on automatic RESET and manual RESET of an external key, the singlechip can finish RESET operation when the RESET end continuously gives high level of 2 machine periods after the clock circuit works, and for example, when the crystal oscillator frequency is 12MHz, the duration of a RESET signal is not less than 2us. As a preferable technical scheme of the utility model, the buzzer alarm module is connected to the P13 pin of the singlechip by a Speaker, a triode and a resistor to form an audible alarm circuit. Compared with the prior art, the utility model has the beneficial ef