CN111768592A - Warning device and warning receiving device for preventing mistaken access to electrified interval - Google Patents
Warning device and warning receiving device for preventing mistaken access to electrified interval Download PDFInfo
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- CN111768592A CN111768592A CN202010477845.5A CN202010477845A CN111768592A CN 111768592 A CN111768592 A CN 111768592A CN 202010477845 A CN202010477845 A CN 202010477845A CN 111768592 A CN111768592 A CN 111768592A
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/02—Alarms for ensuring the safety of persons
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Abstract
The invention discloses a warning device and a warning receiving device for preventing mistaken access to a live interval, wherein the input end of a rectifying circuit at the end of the warning device is connected with a detection end through a voltage stabilizing circuit, the output end of the rectifying circuit is connected with a transmission control circuit, and the transmission control circuit is connected with a wireless transmission module; if the detection end is electrified, the current of the detection end is input into the rectifying circuit, the rectifying circuit rectifies the input current of the detection end, and the rectified current drives the transmission control circuit to control the wireless transmission module to be conducted so as to wirelessly transmit the warning information. The wireless receiving module at the warning receiving device end and the light emitting diode at the receiving end are respectively connected with the receiving controller. The invention has the characteristics of wireless type, small volume, no power supply and the like, has simple structure and lower cost, can be arranged on a charged part to enable the high-voltage electricity to see, reminds and warns workers, and avoids the occurrence of personal electric shock.
Description
Technical Field
The invention relates to the field of live alarm, in particular to a warning device and a warning receiving device for preventing mistaken access to a live interval.
Background
The normal incoming cabinet switch is in a lower interval power-in mode, and the load switch is pulled out, so that the switch cabinet is not electrified at the lower interval. For the branch incoming line switch cabinets such as a starting cabinet, a spare cabinet and a transformer cabinet, although the upper contacts are connected to the buses for power failure maintenance at intervals, the lower contacts are connected to the branch incoming lines at intervals, and after the switch is pulled out, the lower contacts are still electrified at intervals, so that the switch has the special condition that the electrified part and the uncharged part exist at intervals.
And whether parts such as a field high-voltage bus bar, a high-voltage cable, a switch contact and the like in the lower electrified interval are electrified or not cannot be directly judged by visual inspection of human eyes. At present, a signal collector of a high-voltage live display device is mainly installed on a grounding knife switch and other places needing locking to implement forced locking, so that electric misoperation is prevented. Meanwhile, a high-voltage electrified display device is arranged on a cabinet door of the switch cabinet to display whether the switch is switched on or not, but whether the switch contacts and other parts at intervals of the switch are electrified or not can not be displayed, and the switch can only be verified through a high-voltage electroscope, so that a reliable alarm detection means is not provided. In the operations of cleaning and overhauling the switch cabinet, if workers mistakenly enter the electrified interval or work by arbitrarily expanding the working range, the situation that the human body is electrically shocked still can occur.
Disclosure of Invention
In order to solve the above problems, the present invention provides a warning device and a warning receiving device for preventing a worker from entering an electrified interval, which can be directly installed on an indoor high-voltage electrical device to perform an electrified detection on a switch contact and other parts, thereby preventing the worker from entering the electrified interval by mistake.
The technical scheme of the invention is as follows: a warning device for preventing mistaken entry into an electrified interval comprises: the device comprises a voltage stabilizing circuit, a rectifying circuit, a transmission control circuit and a wireless transmission module;
the input end of the rectifying circuit is connected with the detection end through the voltage stabilizing circuit, the output end of the rectifying circuit is connected with the transmission control circuit, and the transmission control circuit is connected with the wireless transmission module; if the detection end is electrified, the current of the detection end is input into the rectifying circuit, the rectifying circuit rectifies the input current of the detection end, and the rectified current drives the transmission control circuit to control the wireless transmission module to be conducted so as to wirelessly transmit the warning information.
Further, the rectifying circuit is a bridge rectifying circuit.
Further, the transmission control circuit comprises a capacitor C1, a one-way thyristor SCR, a voltage regulator tube ZD3, a resistor R2 and a diode D1;
a first output end of the rectifying circuit is connected with a first end of the capacitor C1, and a second output end of the rectifying circuit is connected with a second end of the capacitor C1; the first end of the capacitor C1 is connected with the anode of the one-way silicon controlled rectifier SCR, the cathode of the one-way silicon controlled rectifier SCR is connected with the anode of the diode D1, the cathode of the diode D1 is connected with the second end of the capacitor C1, the control electrode of the one-way silicon controlled rectifier SCR is connected with the anode of the voltage regulator tube ZD3, and the cathode of the voltage regulator tube ZD3 is connected with the first end of the capacitor C1 through the resistor R2;
the wireless transmission module is connected in parallel with the diode D1.
Further, the transmission control circuit further includes a resistor R1;
the cathode of the diode D1 is connected to the second terminal of the capacitor C1 through the resistor R1.
Further, the diode D1 is a light emitting diode.
Further, the diode D1 includes a plurality of series-connected light emitting diodes.
Further, the voltage stabilizing circuit comprises a voltage regulator tube ZD1 and a voltage regulator tube ZD 2;
the positive electrode of the voltage-stabilizing tube ZD1 is connected with the first input end of the rectifying circuit, the negative electrode of the voltage-stabilizing tube ZD1 is connected with the negative electrode of the voltage-stabilizing tube ZD2, and the positive electrode of the voltage-stabilizing tube ZD2 is connected with the second input end of the rectifying circuit.
The technical scheme of the invention also comprises a warning receiving device based on the warning device for preventing the mistaken entering into the electrified interval, which comprises a wireless receiving module, a receiving controller and a receiving end light emitting diode;
the wireless receiving module and the receiving end light emitting diode are respectively connected with the receiving controller.
Further, the device is arranged on a switch cabinet contact baffle, a switch cabinet door or a safety helmet.
The invention provides a warning device and a warning receiving device for preventing mistaken access to a live interval, which are provided with a voltage stabilizing circuit, a rectifying circuit, a transmission control circuit and a wireless transmission module, wherein the input end of the rectifying circuit is directly connected with a detection end through the voltage stabilizing circuit, for example, the input end of the rectifying circuit can be connected to positions such as a high-voltage bus, a high-voltage cable, a high-voltage switch contact baffle and the like, when the detection end is electrified, current is input into the rectifying circuit, the rectified current drives the transmission control circuit to trigger the wireless transmission module to wirelessly transmit warning information out, so that a receiving end receives a warning signal, and in addition, the transmission control circuit can realize field live warning and. The device utilizes the high-energy electric field to obtain electricity, an external power supply is not required to be added to drive a circuit, meanwhile, the wireless transmission module transmits a trigger signal, data are not required to be carried, the power supply requirement of the wireless transmission module can be met by using the high-efficiency miniature battery, the continuous working life is long, and the size of the device is small.
The device has characteristics such as wireless, small, simple structure, and the cost is lower, and the mountable is on electrified position, lets "seeing" that the high-tension electricity saw, reminds and warns the staff, avoids the emergence of the people's body condition of electrocuting.
Drawings
FIG. 1 is a schematic circuit diagram according to an embodiment of the present invention;
FIG. 2 is a block diagram illustrating a second embodiment of the present invention.
In the figure, the wireless power supply comprises a voltage stabilizing circuit 1, a rectifying circuit 2, a transmission control circuit 3, a wireless transmission module 4, a wireless receiving module 5, a receiving controller 6, a receiving end light emitting diode 7, a capacitor C1, an SCR unidirectional silicon controlled rectifier, a voltage stabilizing tube ZD1, a voltage stabilizing tube ZD2, a voltage stabilizing tube ZD3, a voltage stabilizing tube R1, a voltage stabilizing circuit R2 and a diode D1.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings by way of specific examples, which are illustrative of the present invention and are not limited to the following embodiments.
Example one
As shown in fig. 1, the present embodiment provides a warning device for preventing a false access to a live interval, which includes a voltage stabilizing circuit 1, a rectifying circuit 2, a transmission control circuit 3, and a wireless transmission module 4.
The input end of the rectifying circuit 2 is connected with the detection end through the voltage stabilizing circuit 1, the output end of the rectifying circuit 2 is connected with the transmission control circuit 3, and the transmission control circuit 3 is connected with the wireless transmission module 4. If the detection end is electrified, the current of the detection end is input into the rectifying circuit 2, the rectifying circuit 2 rectifies the input current of the detection end, and the rectified current drives the transmission control circuit 3 to control the wireless transmission module 4 to be conducted so as to wirelessly transmit the warning information.
The detection end can be the female position whether electrified that needs to detect such as high-voltage bus, high tension cable and high tension switchgear contact baffle, and when the position that detects was electrified, the device circuit switched on, and wireless transmission module 4 spreads the warning information wireless, can reach backstage monitoring end, also can reach maintenance staff department. It should be noted that the transmission control circuit 3 can also realize on-site alarm and light on an on-site warning lamp.
In this embodiment, the rectifier circuit 2 is a bridge rectifier circuit, and includes four diodes RD1, RD2, RD3, RD 4.
The transmission control circuit 3 comprises a capacitor C1, a one-way thyristor SCR, a voltage regulator tube ZD3, a resistor R2 and a diode D1.
A first output end of the rectifying circuit 2 is connected with a first end of the capacitor C1, and a second output end of the rectifying circuit 2 is connected with a second end of the capacitor C1; the first end of the capacitor C1 is connected with the anode of the one-way silicon controlled rectifier SCR, the cathode of the one-way silicon controlled rectifier SCR is connected with the anode of the diode D1, the cathode of the diode D1 is connected with the second end of the capacitor C1, the control electrode of the one-way silicon controlled rectifier SCR is connected with the anode of the voltage regulator tube ZD3, and the cathode of the voltage regulator tube ZD3 is connected with the first end of the capacitor C1 through the resistor R2. The wireless transmission module 4 is connected in parallel with the diode D1.
When the detection end is electrified, alternating current is input to the rectifying circuit 2, the alternating current is rectified by the rectifying circuit 2 and then is charged to the capacitor C1, when the alternating current is charged to a certain voltage, forward voltage is formed between the anode and the cathode of the unidirectional silicon controlled rectifier SCR, meanwhile, the forward voltage is formed between the control electrode of the unidirectional silicon controlled rectifier SCR and the cathode through the branch of the resistor R2 and the voltage regulator tube ZD3, the unidirectional silicon controlled rectifier SCR is triggered to be conducted, the diode D1 is electrified, and meanwhile, a signal is triggered to the wireless transmission module 4.
It should be noted that, for implementing the field warning, the diode D1 is a light emitting diode, and preferably, the diode D1 includes a plurality of light emitting diodes connected in series. When the detection end is electrified to trigger the conduction of the one-way silicon controlled rectifier SCR, the light emitting diode is driven to emit light, and an alarm is given.
In addition, the wireless transmission module 4 can include a microcontroller and a wireless communication chip, when the detection end is electrified to trigger the one-way silicon controlled rectifier SCR to be conducted, a trigger signal is given to the microcontroller, and the microcontroller sends out an alarm signal through the wireless communication chip. It should be noted that, in the present embodiment, the wireless transmission module 4 may be powered by a high-efficiency micro battery, and since the alarm signal sent by the wireless transmission module 4 does not include data content and can be received by a specific receiver, the transmission power is low, the high-efficiency micro battery can meet the power supply requirement, and has a long service life and a small volume.
In this embodiment, the transmission control circuit 3 further includes a resistor R1, and a cathode of the diode D1 is connected to the second end of the capacitor C1 through the resistor R1 to regulate the circuit current.
In this embodiment, the voltage regulator circuit 1 includes a voltage regulator ZD1 and a voltage regulator ZD 2. The positive electrode of the voltage-stabilizing tube ZD1 is connected with the first input end of the rectifying circuit 2, the negative electrode of the voltage-stabilizing tube ZD1 is connected with the negative electrode of the voltage-stabilizing tube ZD2, and the positive electrode of the voltage-stabilizing tube ZD2 is connected with the second input end of the rectifying circuit 2. And performing voltage stabilization treatment on the input current.
Example two
As shown in fig. 2, the present embodiment provides an alert receiving apparatus adapted to the alert device of the first embodiment, including a wireless receiving module 5, a receiving controller 6, and a receiving end light emitting diode 7. The wireless receiving module 5 and the receiving end light emitting diode 7 are respectively connected with the receiving controller 6, when the wireless transmission module 4 of the warning device sends out warning information, the wireless receiving module 5 receives the warning information, and the receiving controller 6 drives the receiving end light emitting diode 7 to emit light to warn workers.
In this embodiment, this warning receiving arrangement can dispose on cubical switchboard contact baffle, cubical switchboard cabinet door or safety helmet, but timely receipt warning information during the staff's operation. When the bus-bar switch is arranged on the contact baffle of the switch cabinet, electricity can be conveniently taken from the bus. Of course, the worker can also dispose the device at any other position capable of receiving the warning information according to the actual working requirement.
It should be noted that the warning information can also be wirelessly transmitted to the background terminal, so that background personnel can know the electrification condition of the cabinet body in time.
The above disclosure is only for the preferred embodiments of the present invention, but the present invention is not limited thereto, and any non-inventive changes that can be made by those skilled in the art and several modifications and amendments made without departing from the principle of the present invention shall fall within the protection scope of the present invention.
Claims (9)
1. The utility model provides a prevent mistake and go into electrified spaced warning device which characterized in that includes: the device comprises a voltage stabilizing circuit, a rectifying circuit, a transmission control circuit and a wireless transmission module;
the input end of the rectifying circuit is connected with the detection end through the voltage stabilizing circuit, the output end of the rectifying circuit is connected with the transmission control circuit, and the transmission control circuit is connected with the wireless transmission module; if the detection end is electrified, the current of the detection end is input into the rectifying circuit, the rectifying circuit rectifies the input current of the detection end, and the rectified current drives the transmission control circuit to control the wireless transmission module to be conducted so as to wirelessly transmit the warning information.
2. The warning device for preventing mistaken entering into the electrified interval according to claim 1, wherein the rectification circuit is a bridge rectification circuit.
3. The warning device for preventing the mistaken entering into the electrified interval according to claim 2, wherein the transmission control circuit comprises a capacitor C1, a one-way thyristor SCR, a voltage regulator tube ZD3, a resistor R2 and a diode D1;
a first output end of the rectifying circuit is connected with a first end of the capacitor C1, and a second output end of the rectifying circuit is connected with a second end of the capacitor C1; the first end of the capacitor C1 is connected with the anode of the one-way silicon controlled rectifier SCR, the cathode of the one-way silicon controlled rectifier SCR is connected with the anode of the diode D1, the cathode of the diode D1 is connected with the second end of the capacitor C1, the control electrode of the one-way silicon controlled rectifier SCR is connected with the anode of the voltage regulator tube ZD3, and the cathode of the voltage regulator tube ZD3 is connected with the first end of the capacitor C1 through the resistor R2;
the wireless transmission module is connected in parallel with the diode D1.
4. The warning device for preventing the mistaken entering into the electrified interval according to claim 3, wherein the transmission control circuit further comprises a resistor R1;
the cathode of the diode D1 is connected to the second terminal of the capacitor C1 through the resistor R1.
5. The warning device for preventing the mistaken entering into the electrified interval according to claim 3 or 4, wherein the diode D1 is a light emitting diode.
6. The warning device for preventing the mistaken entering into the electrified interval as claimed in claim 5, wherein the diode D1 comprises a plurality of serially connected light-emitting diodes.
7. The warning device for preventing the mistaken entering into the electrified interval according to claim 2, 3 or 4, wherein the voltage stabilizing circuit comprises a voltage stabilizing tube ZD1 and a voltage stabilizing tube ZD 2;
the positive electrode of the voltage-stabilizing tube ZD1 is connected with the first input end of the rectifying circuit, the negative electrode of the voltage-stabilizing tube ZD1 is connected with the negative electrode of the voltage-stabilizing tube ZD2, and the positive electrode of the voltage-stabilizing tube ZD2 is connected with the second input end of the rectifying circuit.
8. The warning receiving device of the warning device for preventing the mistaken access to the electrified interval is characterized by comprising a wireless receiving module, a receiving controller and a receiving end light emitting diode;
the wireless receiving module and the receiving end light emitting diode are respectively connected with the receiving controller.
9. The alert receiving apparatus of claim 8 wherein the apparatus is disposed on a switch cabinet contact shield, a switch cabinet door or a hard hat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010477845.5A CN111768592A (en) | 2020-05-29 | 2020-05-29 | Warning device and warning receiving device for preventing mistaken access to electrified interval |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010477845.5A CN111768592A (en) | 2020-05-29 | 2020-05-29 | Warning device and warning receiving device for preventing mistaken access to electrified interval |
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| Publication Number | Publication Date |
|---|---|
| CN111768592A true CN111768592A (en) | 2020-10-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010477845.5A Pending CN111768592A (en) | 2020-05-29 | 2020-05-29 | Warning device and warning receiving device for preventing mistaken access to electrified interval |
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| CN (1) | CN111768592A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113472075A (en) * | 2021-07-01 | 2021-10-01 | 江苏文广朱方新能源科技有限公司 | Low-voltage switchgear with three proofings alarming function |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08221677A (en) * | 1995-02-10 | 1996-08-30 | Oobekusu Kk | Hot-line alarm |
| CN202256465U (en) * | 2011-10-15 | 2012-05-30 | 四川蓝讯宝迩电子科技有限公司 | Unipolar voltage high-voltage electrification display device |
| CN202256466U (en) * | 2011-10-15 | 2012-05-30 | 四川蓝讯宝迩电子科技有限公司 | Single-pole high-voltage electrified display device |
| CN204791358U (en) * | 2015-07-16 | 2015-11-18 | 宁波天弘电力器具有限公司 | High -voltage line safety warning system |
| CN106483394A (en) * | 2015-08-31 | 2017-03-08 | 彭建明 | It is easy to indicate the device of high-tension switch cabinet electriferous state |
| CN106483364A (en) * | 2015-08-31 | 2017-03-08 | 彭建明 | High-tension switch cabinet electriferous state indicating module |
-
2020
- 2020-05-29 CN CN202010477845.5A patent/CN111768592A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08221677A (en) * | 1995-02-10 | 1996-08-30 | Oobekusu Kk | Hot-line alarm |
| CN202256465U (en) * | 2011-10-15 | 2012-05-30 | 四川蓝讯宝迩电子科技有限公司 | Unipolar voltage high-voltage electrification display device |
| CN202256466U (en) * | 2011-10-15 | 2012-05-30 | 四川蓝讯宝迩电子科技有限公司 | Single-pole high-voltage electrified display device |
| CN204791358U (en) * | 2015-07-16 | 2015-11-18 | 宁波天弘电力器具有限公司 | High -voltage line safety warning system |
| CN106483394A (en) * | 2015-08-31 | 2017-03-08 | 彭建明 | It is easy to indicate the device of high-tension switch cabinet electriferous state |
| CN106483364A (en) * | 2015-08-31 | 2017-03-08 | 彭建明 | High-tension switch cabinet electriferous state indicating module |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113472075A (en) * | 2021-07-01 | 2021-10-01 | 江苏文广朱方新能源科技有限公司 | Low-voltage switchgear with three proofings alarming function |
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Application publication date: 20201013 |