CN202211209U - Intelligent electric-shock-proof safety helmet - Google Patents
Intelligent electric-shock-proof safety helmet Download PDFInfo
- Publication number
- CN202211209U CN202211209U CN2011203041185U CN201120304118U CN202211209U CN 202211209 U CN202211209 U CN 202211209U CN 2011203041185 U CN2011203041185 U CN 2011203041185U CN 201120304118 U CN201120304118 U CN 201120304118U CN 202211209 U CN202211209 U CN 202211209U
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- safety cap
- safety helmet
- electric
- probe
- circuit board
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Abstract
An intelligent electric-shock-proof safety helmet comprises a safety helmet, a detector, a battery, a buzzer and a circuit board, wherein the circuit board positioned inside the helmet is electrically connected with the safety helmet, the detector, the battery and the buzzer and comprises a CPU (central processing unit), the overall safety helmet is a composite probe, a metal film is arranged on the inner side of the safety helmet to form a face electrode plate of the probe, a plurality of small round metal electrodes are distributed on the outer side of the safety helmet in different directions, the metal film on the inner side and the small round metal electrodes on the outer side of the safety helmet form a plurality of parallel plate type sensing probes, and the electric field sensing probes distributed in different directions are the most sensitive to the electric fields in normal directions of the probes and used for detecting intensities of fields in all directions. The intelligent electric-shock-proof safety helmet has the advantages of directional warning on electric field intensity, simple and practical structure, and reliable performance.
Description
Technical field
The utility model is the electric shock-prevention safety cap that has electroscope function.Belong to field of power security product.
Background technology
Safety is most important in the electrical production field, particularly operating personnel's personal safety.Carrying out overhaul of the equipments or technological transformation construction in the transformer station, all is hot line job.Near high-voltage charged body, work and exist field intensity disruptive discharge initiation electric shock accidents to cause danger.Existing electric shock-prevention safety cap has infrared type and Electric field.
Infrared type such as Chinese utility model patent " 200920287692.7 infrared ray safety cap system "; This device comprises infrared transmitting device and infrared receiver; Infrared transmitting device be installed in charging equipment around, infrared receiver is installed on the safety cap.Will produce alarm when the staff who has the infrared receiver safety cap gets into live zone, the prompting staff prevents to get an electric shock.Infrared signal transmits and receives and all adopts singlechip chip control, brings convenience for on-the-spot use, has improved field personnel's operating safety factor.But the problem of this infrared ray safety cap system needs to settle infrared transmitting device be installed in around the charging equipment more complicated in advance.
Electric field such as Chinese utility model patent " 200920106706.0 intelligent portable acousto-optic alarming in short range of electric power device "; Intelligent portable acousto-optic alarming in short range of electric power device; It comprises an antenna element (5), a battery (2), a buzzer (4) and all is electrical connected with said elements and is positioned at inboard circuit board (3) that wherein circuit board (3) includes a CPU.Adopt the utility model, alarm is the automatic switching state, shutdown automatically when leaving electric field; Through antenna element to the induction of industrial-frequency alternating current and award sound and visual information warning simultaneously; And in highfield, working for a long time gives the caution of staff's necessary security with the state of alert, guarantee staff's safety, and the warning degree of accuracy is high; Low-power consumption, Single-chip Controlling are intelligent, volume is little, carry and (can be clipped in chest, neckline, also can be installed on the safety cap.But the direction that this intelligent portable acousto-optic alarming in short range of electric power device can not point out to endanger electric field.
Summary of the invention
The purpose of the utility model provides a kind of trouble free service cap with electroscope function; The wearer of this safety cap can understand the electric field strong and weak that head is confirmed direction on every side in real time; According to setting, in case with electrical body less than safe distance, safety cap can send warning, cue.
The technical scheme of the utility model is: the intelligent electric-shock protection safety cap; It comprises safety cap, detector, battery, buzzer and all is electrical connected with said elements and is positioned at the circuit board of cap that wherein circuit board includes a CPU, it is characterized in that: whole safety cap is a combined probe; Midsole layer metallic film at safety cap; Constitute a pole plate of probe, several the round little metal polar plates that distribute of the different azimuth in the outside of safety cap
ByThe inboard layer metallic film and the outside of safety cap
Some round little metal polar plates have constituted several parallel-plate-type sensing probes, and these are distributed in the electric field sensing probe of different azimuth, and are the most responsive to the electric-field intensity of its normal direction, are used to survey all directions field intensity;
Signal conditioning circuit on the circuit board converts field intensity into voltage signal, and the voltage signal access information is gathered and processing module;
With MSP430F149 (being with 14 road A/D) single-chip microcomputer is that core is formed information gathering and processing module;
Buzzer is electrically connected with MSP430F149 (being with 14 road A/D) single-chip microcomputer output, with alternative sounds or the corresponding different azimuth parallel-plate-type of voice sensing probe;
Adopt zigbee chip CC2430 wireless data transfer module to communicate by letter with backstage security official's hand system or host computer.
Owing to adopt the parallel-plate-type sensing probe; These are distributed in the electric field sensing probe of different azimuth; The most responsive to the electric-field intensity of its normal direction, again because the inboard of safety cap is the layer of metal film, it can shield left to electric field to right-hand influence to sensing probe; Be exactly to cut off the different directions electric field at cap body place, improve the detectivity of electric field sensing probe its normal direction electric field; Inboard metallic film can also play the shielding protection effect to circuit board simultaneously.
The utility model front end inductive probe adopts the parallel-plate-type sensing probe, and the MSP430F149 single-chip microcomputer is that core is formed information acquisition module completion information processing, demonstration, warning; Adopt zigbee chip CC2430 wireless data transfer module, communicate by letter with backstage security official's hand system or host computer.
The beneficial effect of the utility model is:
1. make safety cap have the electric field induction orientating function, can inform the wearer's head electric field strong and weak of specific direction on every side.Can be according to setting, when electric-field strength surpassed certain value, safety cap can send warning, cue.
2. adopt zigbee chip CC2430 wireless data transfer module, the field intensity information that can safety cap be sensed sends to backstage security official's hand system or host computer communication.Can constitute radio field induction net.
Have the directed warning advantage of electric field strong and weak, simple and practical, dependable performance.
Description of drawings
Fig. 1 is the utility model apparatus structure sketch map.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is further specified.
1. front end inductive probe part
Whole safety cap is a combined probe, at the midsole layer metallic film of safety cap, constitutes a pole plate of probe, several the round little metal polar plates that distribute of the different azimuth in the outside of safety cap,
ByThe inboard layer metallic film and the outside of safety cap
Some round little metal polar plates have constituted several parallel-plate-type sensing probes, and these are distributed in the electric field sensing probe of different azimuth, and are the most responsive to the electric-field intensity of its normal direction, are used to survey all directions field intensity;
Sensor is the device of electric field and voltage transitions, and sensing probe is exported the electric field of sensing with voltage form, carry information acquisition module behind decay, rectification, filter circuit, and the utility model adopts the parallel-plate-type sensing probe.
Two parallel metal pole plates; When having electric field between plate; Two plate voltages < img TranNum=" 91 " file=" 2011203041185100002DEST_PATH_IMAGE001.GIF " he=" 20 " img-content=" drawing " img-format=" jpg " inline=" no " orientation=" portrait " wi=" 114 "/>; E is an electric-field intensity, and d is the distance between two plates, is the angle of E and dull and stereotyped normal.Electric field one regularly changes the voltage on scalable two plates.The area scalable signal energy of pole plate.
The parallel-plate-type sensing probe is the most responsive to the electric field strength E of normal direction.Certain directionality is promptly arranged.So in this project, adopted the parallel-plate-type sensing probe, the safety cap medial electrode can be used thin aluminium paper, can regard screen layer as simultaneously.
Owing to adopt the parallel-plate-type sensing probe; These are distributed in the electric field sensing probe of different azimuth; The most responsive to the electric-field intensity of its normal direction, again because the inboard of safety cap is the layer of metal film, it can shield left to electric field to right-hand influence to sensing probe; Be exactly to cut off the different directions electric field at cap body place, improve the detectivity of electric field sensing probe its normal direction electric field; Inboard metallic film can also play the shielding protection effect to circuit board simultaneously.
Pre-amplification circuit during signal is handled is typical electric field sensing circuits, and that operational amplifier is selected is LM324, adopts single supply, homophase input mode, utilizes the folk prescription conductive characteristic of diode to accomplish rectification.
The LM324 family device is the four-operational amplifier that has very differential input, can adopt single supply, and operating voltage can be 3 volts to 32 volts scope, quiescent current be MC1741 quiescent current 1/5th, do not need the external bias element in many application scenarios.
Signal adopts π type electric source filter circuit to carry out filtering before sending MSP430F149 Chip Microcomputer A/D conversion, thereby obtains more accurate result.
In actual conditions, the amplitude of the big corresponding voltage value of the Strength Changes scope of electric field source is also very big, therefore will carry out a certain amount of decay and make it at 0-2.5v.
2. information gathering and processing module are accomplished information gathering, processing, warning and data sending function.
It is core that information gathering and processing module are selected the MSP430F149 single-chip microcomputer, and this module just need not be expanded can receive 14 road signals, accomplishes the A/D conversion.After the digitized processing, each circuit-switched data is sent wireless data transfer module and controlled its completion transmission.
It is the RF transceiver that meets 2.4G IEEE802.15.4 standard that wireless data transfer module adopts zigbee chip CC2430 wireless data transfer module CC2430. utilize the Wireless Telecom Equipment of this chip development to support that data transmission rate can realize multi-multipoint quickly networking up to 250 kbit/s.
Its characteristics: ultralow current drain (RX:19.7mA, TX:17.4mA) high receiving sensitivity (99 dBm); Anti-adjacent channel interference performance strong (39 dB); Inside is integrated with VCO, LNA, PA and power rectifier and adopts low voltage power supply (2.1～3.6V); The power output programmed controlled; IEEE802.15.4 MAC layer hardware can support that automatic frame format generates, insertion synchronously detects with detection, 16bit CRC check, power supply, fully automatic MAC layer safeguard protection (CTR, CBC-MAC, CCM); Interface configuration easy (4 bus SPI interface) with the control microprocessor;
It is the A/D conversion that the circuit of information gathering and processing module carries out digitlization to the signal of probe, pre-amplification circuit output, in the MSP430F149 sheet, does not need any expansion just can realize that the collection conversion of octuple analog signal satisfies the requirement of the multiple spot detection of native system basically under the effect of analog switch; Realize the SPI interface with the I/O mouth through software simulation simultaneously, drive the transmission that CC2430 accomplishes sampled data.The buzzer that can drive on the safety cap simultaneously sends different audio or audio alert
The demonstration of product, warning have two realization approach:
One. directly local warning the: when field intensity surpasses setting value, directly drive the buzzer warning on the safety cap.
Two. show, report to the police through receiver module
Receiver module adopts the MSP430F149 single-chip microcomputer equally, as chip CC2430 controller, accomplishes wireless data and receives.Drive liquid crystal display and alarm.
Claims (1)
1. intelligent electric-shock protection safety cap; It comprises safety cap, detector, battery, buzzer and all is electrical connected with said elements and is positioned at the circuit board of cap that wherein circuit board includes a CPU, and whole safety cap is a combined probe; Midsole layer metallic film at safety cap; Constitute a pole plate of probe, several the round little metal polar plates that distribute of the different azimuth in the outside of safety cap
ByThe inboard layer metallic film and the outside of safety cap
Some round little metal polar plates have constituted several parallel-plate-type sensing probes, and these are distributed in the electric field sensing probe of different azimuth, and are the most responsive to the electric-field intensity of its normal direction, are used to survey all directions field intensity;
Signal conditioning circuit on the circuit board converts field intensity into voltage signal, and the voltage signal access information is gathered and processing module;
With the MSP430F149 single-chip microcomputer is that core is formed information gathering and processing module;
Buzzer is electrically connected with MSP430F149 single-chip microcomputer output, with alternative sounds or the corresponding different azimuth parallel-plate-type of voice sensing probe;
Adopt zigbee chip CC2430 wireless data transfer module to communicate by letter with backstage security official's hand system or host computer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203041185U CN202211209U (en) | 2011-08-19 | 2011-08-19 | Intelligent electric-shock-proof safety helmet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203041185U CN202211209U (en) | 2011-08-19 | 2011-08-19 | Intelligent electric-shock-proof safety helmet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202211209U true CN202211209U (en) | 2012-05-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203041185U Expired - Fee Related CN202211209U (en) | 2011-08-19 | 2011-08-19 | Intelligent electric-shock-proof safety helmet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202211209U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103954849A (en) * | 2014-05-12 | 2014-07-30 | 中国科学院上海高等研究院 | Electric field detection device |
| CN104730352A (en) * | 2013-12-19 | 2015-06-24 | 国家电网公司 | Method and device for detecting electric field intensity and safety helmet |
| EP3052950A4 (en) * | 2013-10-01 | 2017-07-12 | HD Electric Company | High-voltage detector monitoring system |
-
2011
- 2011-08-19 CN CN2011203041185U patent/CN202211209U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3052950A4 (en) * | 2013-10-01 | 2017-07-12 | HD Electric Company | High-voltage detector monitoring system |
| CN104730352A (en) * | 2013-12-19 | 2015-06-24 | 国家电网公司 | Method and device for detecting electric field intensity and safety helmet |
| CN103954849A (en) * | 2014-05-12 | 2014-07-30 | 中国科学院上海高等研究院 | Electric field detection device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120509 Termination date: 20140819 |
|
| EXPY | Termination of patent right or utility model |