CN202720279U - Wireless digital electric field intensity monitoring sensor - Google Patents
Wireless digital electric field intensity monitoring sensor Download PDFInfo
- Publication number
- CN202720279U CN202720279U CN 201220223214 CN201220223214U CN202720279U CN 202720279 U CN202720279 U CN 202720279U CN 201220223214 CN201220223214 CN 201220223214 CN 201220223214 U CN201220223214 U CN 201220223214U CN 202720279 U CN202720279 U CN 202720279U
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- circuit
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- electric field
- field intensity
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Abstract
The utility model relates to a wireless digital electric field intensity monitoring sensor which comprises: a housing; a power supply circuit, an electric field effect element, an amplifier circuit, an impedance conversion circuit, a magnitude discrimination circuit, a power supply control circuit, a PCB circuit board, a one-chip microcomputer circuit and a wireless communication module circuit, which are arranged in the housing; and an antenna arranged out of the housing. The monitoring sensor provided by the utility model has the advantage that the monitoring sensor can both detect whether high-voltage equipment carries electricity and detect the voltage grade of an electrified body and can realize lightning stroke and surge discrimination. The monitoring sensor has a small and exquisite volume and can be installed on equipment to be detected without influencing usage functions of the equipment to be detected. Another advantage of the monitoring sensor is that manufacturing cost for the monitoring sensor is reduced since the structure of the monitoring sensor is simple and a few elements are used.
Description
Technical field
The utility model relates to a kind of electric field intensity monitoring sensor of high-voltage charged body, especially a kind of wireless type digital electric field intensity monitoring sensor, this device also can be used for carrying out power equipment whether the forceful electric power such as the detection of charged and electric pressure and thunderbolt invade and detect.
Background technology
At present, when carrying out the electric power apparatus examination operation, for the degree of protection of confirming the operating area and the voltage degree of protection of inspection operation equipment, must confirm by operating voltage grade and the electriferous state of maintenance equipment, thereby guarantee the security of upkeep operation.The original manual detection method of utilizing HT neon tester is eliminated, and the substitute is the automated detection method of electronic type.In the Chinese patent application (application number 200610123199.2), a kind of technology that adopts wireless type electrification in high voltage detection display and locking has been proposed, but in this technical scheme, only proposed a kind ofly to detect whether charged method of high-tension apparatus, invaded and detect and can not detect the forceful electric power such as the electrified voltage grade of high-tension apparatus and thunderbolt.And that another weak point of this technical scheme is the volume of device is larger, it can not be installed on the tested equipment, thereby need to set up the detection stand for it, has increased cost and the difficulty installed and used.
The utility model content
The purpose of this utility model just provides whether a kind of can to detect high-tension apparatus charged, can detect again the electric pressure of electrified body and the differentiation that the forceful electric power such as thunderbolt are invaded, volume is small and exquisite, can be installed on a kind of wireless type digital electric field intensity monitoring sensor on the tested equipment.
For achieving the above object, the utility model has adopted following technical scheme:
A kind of wireless type digital electric field intensity monitoring sensor, by housing and be contained in power circuit, field effect element, amplifier circuit, PCB circuit board, single chip circuit and the wireless communication module circuit in the housing and be contained in the outer antenna of housing and consist of, it is characterized in that:
This monitoring sensor of a also is provided with the value judging circuit, and its output signal sends single chip circuit to,
B also is provided with impedance inverter circuit and power control circuit between amplifier circuit and single chip circuit.
Described value judging circuit is made of coil, rectifying device and Resistor-Capacitor Unit.
Described impedance inverter circuit is made of digital integrated circuit device and Resistor-Capacitor Unit thereof.
Described power control circuit is made of photoelectric device and Resistor-Capacitor Unit thereof.
Compared with prior art, the beneficial effects of the utility model are: provide whether a kind of can to detect high-tension apparatus charged, can detect again the electric pressure of electrified body and can export a kind of wireless type digital electric field intensity monitoring sensor of the voltage fault signal that transfinites.This monitoring sensor volume is small and exquisite, and it can be installed on the tested equipment, and does not affect the use function of tested equipment, has saved the trouble of setting up stand for monitoring sensor is installed; Another advantage of this monitoring sensor is simple in structure, uses element few, thereby has reduced the manufacturing cost of device.
Description of drawings
Fig. 1 is the structural representation block diagram of wireless type digital electric field intensity monitoring sensor.
Fig. 2 is the circuit theory diagrams of wireless type digital electric field intensity monitoring sensor.
Fig. 3 is the schematic diagram of installing and using of wireless type digital electric field intensity monitoring sensor.
Embodiment
Referring to Fig. 1, wireless type digital electric field intensity monitoring sensor of the present utility model, by housing 14 and be contained in power circuit 11, value judging circuit 15, field effect element 5, amplifier circuit 6, impedance inverter circuit 7, power control circuit 12, single chip circuit 8 and wireless communication module circuit 9, the PCB circuit board 13 in the housing 14 and be contained in housing 14 outer antennas 10 and consist of, its concrete structure is: this monitoring sensor has a housing 14, and a PCB circuit board 13 is arranged in the inside of housing 14.On PCB circuit board 13, method with corrosion is shaped with a Copper Foil induction electrode 5, also is shaped with the used circuit connection of amplifier circuit 6, impedance inverter circuit 7, value judging circuit 15, power control circuit 12, single chip circuit 8, wireless communication module circuit 9 and power circuit 11.At PCB circuit board 13 all elements that are welded with amplifier circuit 6, impedance inverter circuit 7, value judging circuit 15, power control circuit 12, single chip circuit 8 and wireless communication module circuit 9 are installed.And antenna 10 and wireless communication module circuit 9 have been contained in the outside of housing 14 after being electrically connected.Wherein, impedance inverter circuit 7 is made of digital integrated circuit device and Resistor-Capacitor Unit thereof, and power control circuit 12 is made of photoelectric device and Resistor-Capacitor Unit thereof, and the value judging circuit is made of Resistor-Capacitor Units such as coil and rectifier bridge and triodes.
The electrical schematic diagram of this monitoring sensor as shown in Figure 2.In Fig. 2, amplifier circuit 6 is made of amplifying device MOSC301 and LM324 and potentiometer POT1, resistance R 2, R16 and capacitor C 20; Impedance inverter circuit 7 is made of MC74HC4051, R3, R7 ~ R15, R18; Power control circuit 12 is made of photoelectric relay 232EH, R6, R19; Single chip circuit 8 is made of single chip computer AT MEGA48V, R4, C17, C18, XTAL2; Wireless communication module circuit 9 is made of radio frequency chip CC1100, XTAL1, R1, C1, C6～C14, L1～L4; Power circuit 11 is made of lithium battery BT1, R5, C2～C5, C15, C16, LED, and the value judging circuit is by L5, D1 ~ D2, and R20 ~ R24, C21 ~ C25, Q3 consists of.
The course of work of this monitoring sensor is such:
Externally under the effect of electric field, the electric pressure determination methods is as follows: field effect element 5 induces electric field signal, this electric field signal is by the positive input 2 pin input of amplifying device MOSC301, output signal is by the 3 pin output of MOSC301, and this signal passes through R3 after delivering to operational amplifier LM324 amplification by resistance R 2 again, R7 ~ R15, the R18 voltage division processing is delivered on 18 (ADC5) pin of single chip computer AT MEGA48V, carries out data acquisition and calculating by single-chip microcomputer.The voltage computing formula of its collection is: V
ADC=V
REF*(R3+R7)/R18.Single-chip microcomputer is different according to the field intensity under different electric pressure conditions, in advance impedance inverter circuit 7 is carried out the initialization value, then single-chip microcomputer in conjunction with (0,220V, 380V, 3KV, 6KV, 10KV, 35KV, 66KV) the different field intensity mathematical models of electric field, calculate the approximate value of electric field intensity, thereby judge the electriferous state of high-tension apparatus;
Thunderbolt and the determination methods of surge voltage are as follows: when charging equipment works, owing to C23 every straight effect, Q3 is in cut-off state.And when thunderbolt or surge voltage were arranged, thunderbolt or surge electromagnetic field will induce voltage signal at coil L5, and this signal is added on C21 and the C22 through the D1 rectification, and is added to by C23 on the base stage of Q3.Q3 conducting this moment, 31 pin (INT0) the pin level of single chip computer AT MEGA48V changes and produces interruption.At this moment, single-chip microcomputer gathers and calculates signal amplitude immediately, and the voltage computing formula of its collection is: V
ADC=V
REF*(R21+R23)/and R22, calculate the sudden change value of voltage, according to the numerical value (V that sets
Surge〉=5* operating voltage, during thunderbolt, transition diode D2 conducting V
Thunderbolt=0), and within the regular hour, the voltage of charging equipment revert to again normal value, thereby judges thunderbolt and surge voltage; This information of voltage sends wireless communication module circuit 9 to, and wireless communication module circuit 9 drives its wireless chip CC1100, utilizes wireless mode that thunderbolt or surge status information are launched.
The mounting means of wireless type digital electric field intensity monitoring sensor of the present utility model as shown in Figure 3.In Fig. 3,1 is the sensor after the encapsulation of the utility model product, and 2 is high-voltage busbar or wire, and 3 is radio receiver.4 is the fieldbus of receiving trap.During sensor 1 work, regularly send whether charged wireless signal of high-voltage busbar or wire 2, after receiving trap is received the electriferous state signal of wireless transmission, utilize the means prompting constructing operation personnel such as acoustic-optic indicator, inform the present electriferous state of tested equipment and the situation of circuit generation surge and thunderbolt.
Wireless type digital electric field intensity monitoring sensor of the present utility model can detect the electriferous state of the consumer of 0～66KV.The data result that an embodiment of the present utility model detects is shown in chart.
Following table is the testing result schematic diagram of wireless type digital electric field intensity monitoring sensor.
| The computing sampling value | The electric pressure calculated value | The voltage class standard value | Error | |
| V IN->R7=0.00V | 0 | 0 | 0 | |
| V IN->R8=1.28v | 198V | |
10% | |
| V IN->R9=1.97v | | 380V | 8% | |
| V IN->R10=1.26v | 912V | 1KV | 8.8% | |
| V IN->R11=1.55v | 2.67 |
3? |
11% | |
| V IN->R12=1.72v | 5.41 |
6? |
9% | |
| V IN->R13=1.97v | 8.76 |
10?KV | 8.8% | |
| V IN->R14=1.63v | 31.8KV | 35?KV | 9.1% | |
| V IN->R15=1.44v | | 66KV | 9% |
As can be seen from the table, in the situation that tested equipment has electricity, the detection error of wireless type digital electric field intensity monitoring sensor of the present utility model is about 10%, can demarcate the electric pressure of power industry standard fully, also can indicate whether charged state of circuit fully, also can realize the differentiation to thunderbolt or surge voltage simultaneously.
Claims (6)
1. wireless type digital electric field intensity monitoring sensor, by housing and be contained in power circuit, field effect element, amplifier circuit, PCB circuit board, single chip circuit and the wireless communication module circuit in the housing and be contained in the outer antenna of housing and consist of, it is characterized in that:
This monitoring sensor of a also is provided with the value judging circuit, and its output signal sends single chip circuit to,
B also is provided with impedance inverter circuit and power control circuit between amplifier circuit and single chip circuit.
2. wireless type digital electric field intensity monitoring sensor according to claim 1, it is characterized in that: described impedance inverter circuit is made of digital integrated circuit device and Resistor-Capacitor Unit thereof.
3. wireless type digital electric field intensity monitoring sensor according to claim 1, it is characterized in that: described power control circuit is made of photoelectric device and Resistor-Capacitor Unit thereof.
4. wireless type digital electric field intensity monitoring sensor according to claim 1 is characterized in that: described value judging circuit is made of coil and rectification circuit and Resistor-Capacitor Unit.
5. wireless type digital electric field intensity monitoring sensor according to claim 2, it is characterized in that: described power control circuit is made of photoelectric device and Resistor-Capacitor Unit thereof.
6. wireless type digital electric field intensity monitoring sensor according to claim 3, it is characterized in that: described impedance inverter circuit is made of digital integrated circuit device and Resistor-Capacitor Unit thereof.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220223214 CN202720279U (en) | 2012-05-17 | 2012-05-17 | Wireless digital electric field intensity monitoring sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220223214 CN202720279U (en) | 2012-05-17 | 2012-05-17 | Wireless digital electric field intensity monitoring sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202720279U true CN202720279U (en) | 2013-02-06 |
Family
ID=47622101
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220223214 Expired - Lifetime CN202720279U (en) | 2012-05-17 | 2012-05-17 | Wireless digital electric field intensity monitoring sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202720279U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105510725A (en) * | 2015-12-28 | 2016-04-20 | 电子科技大学 | Self-adaptive determining method for voltage grade of high-voltage line |
-
2012
- 2012-05-17 CN CN 201220223214 patent/CN202720279U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105510725A (en) * | 2015-12-28 | 2016-04-20 | 电子科技大学 | Self-adaptive determining method for voltage grade of high-voltage line |
| CN105510725B (en) * | 2015-12-28 | 2018-07-27 | 电子科技大学 | The adaptive method of discrimination of high-voltage line voltage class |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130206 |
|
| CX01 | Expiry of patent term |