CN200959154Y - Electric-power line safety device - Google Patents
Electric-power line safety device Download PDFInfo
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- CN200959154Y CN200959154Y CN 200620065847 CN200620065847U CN200959154Y CN 200959154 Y CN200959154 Y CN 200959154Y CN 200620065847 CN200620065847 CN 200620065847 CN 200620065847 U CN200620065847 U CN 200620065847U CN 200959154 Y CN200959154 Y CN 200959154Y
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Abstract
The utility model relates to a power line burglar alarm and is characterized in that a dial alarm element (1) and a detecting element (2) are included. The dial alarm element (1) is consisted of a keyboard circuit (3) appliable to the communication equipment, a main control circuit (4), a key switch circuit (5) and a voice record and control circuit (9), and the detecting element (2) is consisted of a plurality of voltage detecting circuits (10), whose voltage input end is connected with the power line while the voltage output end is connected with input/output port of the main control circuit (4). The output end of the main control circuit (4) is connected with the key control end of the keyboard circuit (3) by the key switch circuit (5), and another set of output is connected with the mike of the communication equipment keyboard circuit (3) by the voice record and control circuit (9). The utility model can avoid the interference of the radio signal, and perform the dial alarm through various telephone communication network systems, thereby realizing the wireless remote audio alert of the power line burglar alarm.
Description
Technical field
The utility model relates to a kind of power line anti-theft alarm device, be that several detection probe segmentations are installed on the outside line of electric force specifically, each section to line of electric force is monitored, and can belong to the power line anti-theft alarm technical field by the control of communication facilities keyboard being carried out the power line anti-theft alarm device that dialing is reported to the police.
Background technology
At present, the stolen situation of line of electric force often takes place, and therefore, alarm need be set on line of electric force.In the prior art, the power line anti-theft alarm device has multiple, comprises various brands.But there is following shortcoming in these power line anti-theft alarm devices: (1) detection probe adopts wireless transmission method and alarm host machine to get in touch, and is subjected to external interference easily, and signal can't transmit, and can't report to the police.(2) detection probe and alarm host machine are integrated and be installed in the end of transformer platform outlet before the circuit bifurcated, steal if thief overlaps segmentation again with aluminum steel to line of electric force earlier, burglar alarm just detect less than, also just can't report to the police.This is a problem that is difficult to solution.(3) radio detection probe, and detection probe and alarm host machine all-in-one, their circuit is complicated, and electronic devices and components are more; adopt intensive mounting means that line of electric force is carried out sectionalised protection, cost is very high, and is installed in the field; environment for use is abominable, easily loses efficacy poor reliability.
The utility model content
The utility model technical issues that need to address, promptly the purpose of this utility model is for a kind of power line anti-theft alarm device is provided.The detection probe of this power line anti-theft alarm device is not subjected to interference, the reliability height of any radiowave, and stolen can both the warning of any one section electric wire of line of electric force, and circuit is simple, electronic component is few.
The purpose of this utility model can reach by following technical measures:
The power line anti-theft alarm device, its design feature is: comprise dialing alarm unit and detecting unit, the dialing alarm unit is made up of communication facilities keyboard circuit, main control circuit, keyswitch circuit and voice record and control circuit, is provided with the telephone number reservoir in the main control circuit; Detecting unit is made up of several voltage detecting circuits; Described voltage detecting circuit is provided with single-phase or three-phase voltage input end and single-phase or three-phase voltage output terminal; The voltage input end of voltage detecting circuit is connected with line of electric force; The voltage output end of voltage detecting circuit connects the main control circuit I/O port, each output signal end of one group of output terminal of main control circuit connects the button control end of communication facilities keyboard circuit respectively by a switch of keyswitch circuit, another group output of main control circuit connects the microphone of communication facilities keyboard circuit by voice record and control circuit.
During practical application, several voltage detecting circuit segmentations are installed on the outside line of electric force, and each section of line of electric force is monitored; The power taking from the line of electric force of the mode of voltage detecting circuit by binding is respectively to three-phase voltage L1, the L2 of line of electric force with L3 detects or single-phase voltage detects.The communication facilities keyboard circuit can be the keyboard circuit of GSM mobile handset, keyboard circuit that also can PHS mobile phone, and keyboard circuit that also can satellite phone, keyboard circuit that also can landline telephone also can be the keyboard circuit of other communication facilities; Main control circuit is connected with outer detecting circuit through lead by interface circuit again, it is the input end of alerting signal, the signal output part of main control circuit connects the communication facilities keyboard circuit, main control circuit is according to the alerting signal that receives, communication for command device keyboard circuit is according to preset phone number, with the mode of calling the automatically signal that gives the alarm.
The utility model is when reporting to the police, can be by present and following various telephone communication network system, as GSM network system, developing from pas network system, satellite phone, landline telephone, get through the mobile phone or the landline telephone in a distant place, report to the police with voice or computerized information, thus the power line anti-theft alarm device of realization remote alarms.
Technical matters of the present utility model also can solve by taking following measure:
A kind of embodiment of the present utility model is: detecting unit also comprises contact pin binding mechanism, and this contact pin binding mechanism is by structure, contact pin, fixedly casting die and fixed screw are formed; The voltage input end contact pin binding mechanism of voltage detecting circuit is connected with line of electric force, and the contact pin of contact pin binding mechanism penetrates line of electric force under the effect of fixing casting die; The bottom of contact pin is connected to lead, and is connected with voltage detecting circuit, and voltage detecting circuit is by contact pin power taking from the line of electric force; Voltage detecting circuit is contained in the structure.
A kind of embodiment of the present utility model is: the input end of voltage detecting circuit is that three-phase input end, output terminal are three-phase output end; Three-phase output end connects three I/O ports of main control circuit respectively by lead A, B, C; Three I/O ports of main control circuit are respectively interface circuit 1, interface circuit 2 and interface circuit 3.
A kind of embodiment of the present utility model is: testing circuit is made up of decompression capacitor, current rectifying and wave filtering circuit and relay.
When on the line of electric force electricity being arranged, the 220V line voltage provides driving voltage through capacitance decompression and rectifying and wave-filtering to relay, and relay is connected Chang Kaiduan; When line of electric force is cut the nothing electricity, no driving voltage, relay is connected normal-closed end.
A kind of embodiment of the present utility model is: after the Chang Kaiduan of all relays is connected in series in the detecting unit, through lead A and lead C, is connected with interface circuit 3 with interface circuit 1, and forms a loop.
A kind of embodiment of the present utility model is: with the normal-closed end of all relays in the detecting unit and after connecing, through lead B and lead C, be connected with interface circuit with interface circuit, form a loop.
Detecting unit is made up of several voltage detecting circuits, and these voltage detecting circuits are installed on the outside line of electric force, and each section of line of electric force is monitored, and detecting unit is connected with the dialing alarm unit by lead.Each testing circuit is made up of three voltage detecting circuits again, the power taking from the line of electric force of the mode by binding, and the three-phase voltage to line of electric force detects respectively.Voltage detecting circuit is made up of decompression capacitor, current rectifying and wave filtering circuit and relay.After the Chang Kaiduan of all relays is connected in series in the detecting unit, is connected with interface circuit in the dialing alarm unit, and forms a loop.With the normal-closed end of all relays in the detecting unit and after connecing, also be connected, and form a loop with interface circuit in the dialing alarm unit.
0～9 button end in the communication facilities keyboard circuit, confirm that button end, deletion button end are connected the microphone input end connection voice record and the control circuit of communication facilities keyboard circuit with 0～9 bond switching, acknowledgement key K switch 10, delete key K switch 11 and power key K switch 12 in the keyswitch respectively.
The power line anti-theft alarm device can be finished following work:
1) all relay in the detecting unit has electricity on line of electric force, behind step-down, rectifying and wave-filtering, is added to relay, and relay is connected Chang Kaiduan; Cut the nothing electricity when line of electric force, relay does not have driving voltage, and connects normal-closed end.Because after the Chang Kaiduan of all relays is connected in series in the detecting unit, be connected with interface circuit in the dialing alarm unit, and formed a loop, when line of electric force is intact, all relays get electric, connect Chang Kaiduan, and this loop is connected; Wherein one or more snippets does not have driving voltage and connects normal-closed end with regard to one or more relays are arranged when being cut when line of electric force, and this loop is just obstructed, and at this moment main control circuit just judges that line of electric force is stolen, just reports to the police.
2) artificially overlapped in order to prevent with lead, all relays are striden across, make this loop not pass through relay, and cause testing circuit to lose efficacy, therefore the normal-closed end of all relays all and after connecing in the detecting unit, also be connected, and form a loop with interface circuit in the dialing alarm unit.When line of electric force is intact, all relays get electric, connect Chang Kaiduan, and normal-closed end does not form the loop, and voltage is zero; Wherein one or more snippets does not have driving voltage and connects normal-closed end with regard to one or more relays are arranged when being cut when line of electric force, and normal-closed end just forms the loop, and voltage raises, and at this moment main control circuit just judges that line of electric force is stolen, just reports to the police.
3) duty of the series loop of being made up of relay and interface circuit is controlled and detected to the main control circuit in the dialing alarm unit constantly.Change when detecting duty, judge that line of electric force is stolen, or alarm is destroyed, just report to the police, and, control the closure of corresponding keyswitch according to the telephone number that keeps in advance, be equivalent to the communication facilities keyboard circuit is carried out button operation, alarm call is got out.
4) after the communication facilities keyboard circuit has been dialed number, if phone has been put through, master control circuit controls voice record and control circuit are broadcast voice and other various cues, and deliver to the microphone input end of mobile phone wiring board, so just finish long distance wireless audio alert function one time;
5) power sense circuit is used for the supply voltage of detection of handset wiring board, when detecting mobile phone non-transformer voltage, and master control circuit controls power key switch closure a period of time, be equivalent to by power switch key, make the mobile phone wiring board be in open state.
The utlity model has following outstanding effect:
1, the utility model is made up of several voltage detecting circuits owing to detecting unit, these testing circuits are installed in each position on the outside line of electric force, line of electric force is carried out the segmentation monitoring, can the person of avoiding theft adopt earlier with other lead with the line of electric force short circuit after, cut off the method for line of electric force again and steal line of electric force.Be widely used in the burglar alarm of various line of electric force.
2, the utility model is not subjected to the interference of radio signal because detecting unit and dialing alarm unit are to adopt wired connection.Can the person of avoiding theft adopt the alerting signal of using the radio signal interference burglar alarm earlier to accept, burglar alarm was lost efficacy, steal line of electric force again.Since can be by present and following various telephone communication network system, as GSM network system, developing from pas network system, satellite phone, landline telephone or the like carry out dialing alarm, so can realize the wireless remote speech warning of power line anti-theft device.In case report to the police, the telephone number that main control circuit is just deposited according to storer, the keyswitch that control is connected with communication facilities keyboard circuit keyboard makes the closed and disconnection of these keyswitches, is equivalent to by push-button dialing.If phone has been put through, send the stolen alarm voice of line of electric force and other various cues, so just finished warning function.
3, the utility model is because after the Chang Kaiduan of all relays is connected in series in the detecting unit, is connected with interface circuit in the dialing alarm unit, and forms a loop; In the detecting unit normal-closed end of all relays and connect after, also be connected, and form a string loop with interface circuit in the dialing alarm unit.Can accomplish any trimming of line between detecting unit and dialing alarm unit or make contact, all can trigger warning, so just can the person of avoiding theft adopt and destroy alarm earlier, steal line of electric force again.And each voltage detecting circuit is made up of decompression capacitor, commutation diode, filter capacitor and relay, and circuit is very simple, and cost is low, and the reliability height is suitable for abominable field environment and uses.
Description of drawings
Fig. 1 is the circuit structure diagram of the utility model embodiment 1.
Fig. 2 is the circuit theory diagrams of the utility model embodiment 1.
Fig. 3 is the circuit theory diagrams of voltage detection unit among Fig. 1.
Fig. 4 is the circuit theory diagrams of dialing alarm unit among Fig. 1.
Fig. 5 is the contact pin power taking structural drawing of voltage detection unit among Fig. 3.
Embodiment
Specific embodiment 1:
With reference to Fig. 1, present embodiment comprises dialing alarm unit 1 and detecting unit 2, and dialing alarm unit 1 is made up of the keyboard circuit 3 that is applicable to any communication facilities, main control circuit 4, keyswitch circuit 5, voice record and control circuit 9 and storer; Detecting unit 2 is made up of several voltage detecting circuits 10 and contact pin binding mechanism; Described voltage detecting circuit 10 is provided with three-phase voltage input end and three-phase voltage output terminal; The voltage output end of voltage detecting circuit 10 connects main control circuit 4 I/O ports, the output signal end everywhere of one group of output terminal of main control circuit 4 connects the push button signalling input end of communication facilities keyboard circuit 3 respectively by a switch of keyswitch circuit 5, another group output of main control circuit 4 connects the microphone of communication facilities keyboard circuit 3 by voice record and control circuit 9.Described voltage detecting circuit 10 is installed on the outside line of electric force, and each section of line of electric force is monitored.The power taking from the line of electric force 11 of the mode of voltage detecting circuit 10 by binding, three-phase voltage L1, L2 and the L3 to line of electric force 11 detects respectively.
With reference to Fig. 2, voltage detecting circuit 10 comprises voltage detecting circuit 101, voltage detecting circuit 102 ... voltage detecting circuit 10n, total n voltage detecting circuit, and be installed on the line of electric force 11, line of electric force 11 is divided into the n section, by the mode of binding, the power taking from the line of electric force 11 of each voltage detecting circuit is monitored each section of line of electric force 11.Voltage detecting circuit 10 by three independently circuit form, the three-phase voltage to line of electric force 11 detects respectively.In voltage detecting circuit 101, by decompression capacitor C1, current rectifying and wave filtering circuit B1 and C4, and the testing circuit that relay R E1 forms is the L3 that is used for detecting line of electric force 11; By decompression capacitor C2, current rectifying and wave filtering circuit B2 and C5, and the testing circuit of relay R E2 composition is used for detecting the L2 of line of electric force 11; By decompression capacitor C3, current rectifying and wave filtering circuit B3 and C6, and the testing circuit of relay R E3 composition is used for detecting the L1 of line of electric force 11.The principle of work of other voltage detecting circuit and voltage detecting circuit 101 are just the same.
With reference to Fig. 3, lead A is connected in series the Chang Kaiduan of all relay R E1～RE7, through diode D1, lead C, is connected with interface circuit 8 in the dialing alarm unit 1, and forms a loop; Lead B is with the normal-closed end of all relay R E1～RE7 and connect, and through diode D2, lead C is connected with interface circuit 8 in the dialing alarm unit 1, and forms a loop.
With reference to Fig. 4, main control circuit 4 adopts the 89C52 single-chip microcomputer; The electronic switch that keyswitch 5 is made up of triode Q1～Q13 respectively; Interface circuit 6 is made up of Q20～Q22, R20～R22 components and parts; Interface circuit 7 is made up of Q23～Q25, R23～R25 components and parts; Interface circuit 8 is made up of Q26～Q28, R26～R28 components and parts; Voice record and control circuit 7 adopt integrated circuit ISD1420.The function of communication facilities keyboard circuit 3 is equivalent to a GSM mobile handset, and 0～9 button end on its keyboard is connected with the K0～K9 in the keyswitch 5, confirm button end, deletion button end, power end respectively with keyswitch 5 in K10, K11 be connected with K12; The microphone input end connects and voice record and control circuit 7 by 2 lines.
With reference to Fig. 5, the contact pin binding mechanism of voltage detection unit 2 is by structure 21, contact pin 22, fixedly casting die 23 and fixed screw 24 are formed; Described contact pin 22 penetrates line of electric force 11 and zero line N under the effect of fixing casting die 23; The bottom of contact pin 22 is connected to lead, and is connected with voltage detecting circuit, and voltage detecting circuit is by contact pin 22 power taking from the line of electric force 11, for testing circuit provides input terminal voltage; Testing circuit is contained in the structure 21.
The principle of work of present embodiment is as follows:
As shown in Figure 2, detecting unit 2 is connected with interface circuit 6, interface circuit 7, interface circuit 8 in the dialing alarm unit 1 respectively by lead A, lead B, lead C.
When the P0.4 of main control circuit 4 pin output high level, during the P0.0 output low level, the Q21 saturation conduction, also make the Q22 saturation conduction, the 12V of lead A output at this moment voltage is if line of electric force 11 is intact, all relays get electric, connect Chang Kaiduan, and this loop is connected, 12V voltage is through diode D1, and lead C and resistance R 26 are added to the base stage of Q26, make the Q26 saturation conduction, the P0.1 pin of main control circuit 4 is a low level, and at this moment main control circuit 4 judges that line of electric force 11 is intact, does not report to the police; When line of electric force 11 wherein one or more snippets when being cut, just there are one or more relays not have driving voltage and connect normal-closed end, this series loop is just obstructed, 12V voltage just adds the base stage less than Q26, Q26 is in cut-off state, the P0.1 pin of main control circuit 4 is a high level, and at this moment main control circuit 4 just judges that line of electric force 11 is stolen, just reports to the police.
When the P0.4 of main control circuit 4 pin output high level, during the P0.2 output low level, lead A output 12V voltage, if line of electric force 11 is intact, all relays get electric, connect Chang Kaiduan, and diode D2 instead ends partially, the voltage of lead B is zero, the Q23 base voltage also is zero, and Q23 ends, and the P0.3 pin of main control circuit 4 is a high level, at this moment main control circuit 4 judges that line of electric force 11 is intact, does not report to the police; When line of electric force 11 wherein one or more snippets when being cut, just there are one or more relays not have driving voltage and connect normal-closed end, perhaps lead A and lead B lead short circuit, at this moment the 12V voltage on the lead A just is added on the lead B, and be added to the base stage of Q23 through lead B and resistance R 23, and Q26 is in the saturation conduction state, and the P0.1 pin of main control circuit 4 is a low level, at this moment main control circuit 4 just judges that line of electric force 11 is stolen, just reports to the police.
When the P0.2 of main control circuit 4 pin output high level, P0.0 output low level, Q24 saturation conduction, Q25 saturation conduction, at this moment lead B output 12V voltage, if lead B and lead C are not cut, 12V voltage is added to the base stage of Q26 through diode D2, lead C and resistance R 26, make the Q26 saturation conduction, the P0.1 pin of main control circuit 4 is a low level, and main control circuit 4 judgement lead B and lead C are intact, do not report to the police; When lead B or lead C were cut, 12V voltage just added the base stage less than Q26, and Q26 is in cut-off state, and the P0.1 pin of main control circuit 4 is a high level, and main control circuit 4 these leads are cut, and just reported to the police.
When the P0.0 of main control circuit 4 pin output high level, the P0.2 output low level, during the P0.4 output low level, lead C output 12V voltage.At this moment because diode D1 and D2 are in anti-state partially, just often, lead A and lead B are low level, the base voltage of Q20 and Q23 also is zero, Q20 and Q23 end, the P0.5 pin of main control circuit 4 and P0.3 are high level, are not at this moment used the lead short circuit between main control circuit 4 judgement lead A, lead B and the lead C, do not report to the police; When lead A and lead C by with the lead short circuit time, the 12V voltage of lead C output just directly is added to lead A, be added to the base stage of Q20 again through resistance R 20, Q20 is in the saturation conduction state, and the P0.5 pin of main control circuit 4 is a low level, and at this moment main control circuit 4 is just reported to the police; When lead B and lead C by with the lead short circuit time, the 12V voltage of lead C output just directly is added to lead B, be added to the base stage of Q23 again through resistance R 23, Q23 is in the saturation conduction state, and the P0.3 pin of main control circuit 4 is a low level, and at this moment main control circuit 4 is just reported to the police.
So to cutting off of lead A, lead B, lead C, use the lead short circuit, all can cause warning.
When main control circuit 4 detects alerting signal, the telephone number that main control circuit 4 is just deposited according to storer, the keyswitch 5 that control is connected with communication facilities keyboard circuit 2 upper keyboards makes these switch closures and disconnection, is equivalent to by push-button dialing.For example, the number of dialing is 13600345489, and its process is like this: main control circuit 4 at first from high level of P2.1 mouth output, makes the Q2 saturation conduction, make the K1 key short circuit on the communication facilities keyboard circuit 2, be equivalent to button and be pressed, and after keeping about 100 milliseconds, the P2.1 mouth is got back to low level, Q2 ends, be equivalent to discharge button, also keep about 100 milliseconds, so just dial be over " 1 ".After having dialled " 1 ", begin to dial " 3 " from high level of P2.3 mouth output again, its method with dial " 1 " the same, utilize the conducting of Q1～Q13 like this and end and can all dial 13600345489.After all having dialled 13600345489, main control circuit just from high level of P0.4 mouth output, makes the Q11 saturation conduction, is equivalent to supress acknowledgement key, has so just finished whole operations of dialing 13600345489 numbers.It is just the same that this process is exactly the process of phoning with mobile telephone with the people.
Specific embodiment 2:
The characteristics of present embodiment are: described voltage detecting circuit 10 is provided with single-phase voltage input end and single-phase voltage output terminal; Be applicable to and detect the single-phase electricity line of force.All the other are with specific embodiment 1.
Claims (6)
1, power line anti-theft alarm device, it is characterized in that: comprise dialing alarm unit (1) and detecting unit (2), dialing alarm unit (1) is made up of communication facilities keyboard circuit (3), main control circuit (4), keyswitch circuit (5) and voice record and control circuit (9), and main control circuit is provided with the telephone number reservoir in (4); Detecting unit (2) is made up of several voltage detecting circuits (10); Described voltage detecting circuit (10) is provided with single-phase or three-phase voltage input end and single-phase or three-phase voltage output terminal; The voltage input end of voltage detecting circuit (10) is connected with line of electric force; The voltage output end of voltage detecting circuit (10) connects main control circuit (4) I/O port, each output signal end of one group of output terminal of main control circuit (4) connects the button control end of communication facilities keyboard circuit (3) respectively by a switch of keyswitch circuit (5), another group output of main control circuit (4) connects the microphone of communication facilities keyboard circuit (3) by voice record and control circuit (9).
2, power line anti-theft alarm device according to claim 1 is characterized in that: detecting unit (2) also comprises contact pin binding mechanism, and this contact pin binding mechanism is by structure (21), contact pin (22), fixedly casting die (23) and fixed screw (24) are formed; The voltage input end of voltage detecting circuit (10) is connected with line of electric force with contact pin binding mechanism, and the contact pin (22) of contact pin binding mechanism penetrates line of electric force (11) by the fixing compressing of casting die (23); The bottom of contact pin (22) is connected to lead, and is connected with voltage detecting circuit (10), and voltage detecting circuit (10) is by contact pin (22) power taking from the line of electric force; Voltage detecting circuit (10) is contained in the structure.
3, power line anti-theft alarm device according to claim 1 is characterized in that: the input end of voltage detecting circuit (10) is that three-phase input end, output terminal are three-phase output end; Three-phase output end connects three I/O ports of main control circuit (4) respectively by lead A, B, C; Three I/O ports of main control circuit (4) are respectively interface circuit (6), interface circuit (7) and interface circuit (8).
4, power line anti-theft alarm device according to claim 2 is characterized in that: voltage detecting circuit (10) is made up of decompression capacitor, current rectifying and wave filtering circuit and relay.
5, power line anti-theft alarm device according to claim 3 is characterized in that: after the Chang Kaiduan of all relays is connected in series in the detecting unit (2), through lead A and lead C, is connected with interface circuit (8) with interface circuit (6), and forms a loop.
6, power line anti-theft alarm device according to claim 3 is characterized in that: with the normal-closed end of all relays in the detecting unit (2) and after connecing, through lead B and lead C, be connected with interface circuit (8) with interface circuit (7), form a loop.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620065847 CN200959154Y (en) | 2006-10-18 | 2006-10-18 | Electric-power line safety device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620065847 CN200959154Y (en) | 2006-10-18 | 2006-10-18 | Electric-power line safety device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200959154Y true CN200959154Y (en) | 2007-10-10 |
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ID=38786032
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620065847 Expired - Fee Related CN200959154Y (en) | 2006-10-18 | 2006-10-18 | Electric-power line safety device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200959154Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102855723A (en) * | 2011-06-30 | 2013-01-02 | 宝山钢铁股份有限公司 | Device and method for monitoring stealing cutting prevention of power cables of motor |
| CN105225395A (en) * | 2015-10-08 | 2016-01-06 | 国家电网公司 | Not go into operation line burglar alarm |
| CN105376536A (en) * | 2015-11-27 | 2016-03-02 | 包头北方创业股份有限公司 | Automatic equipment identification (AEI) real-time monitoring alarm system |
-
2006
- 2006-10-18 CN CN 200620065847 patent/CN200959154Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102855723A (en) * | 2011-06-30 | 2013-01-02 | 宝山钢铁股份有限公司 | Device and method for monitoring stealing cutting prevention of power cables of motor |
| CN102855723B (en) * | 2011-06-30 | 2014-10-01 | 宝山钢铁股份有限公司 | Device and method for monitoring stealing cutting prevention of power cables of motor |
| CN105225395A (en) * | 2015-10-08 | 2016-01-06 | 国家电网公司 | Not go into operation line burglar alarm |
| CN105376536A (en) * | 2015-11-27 | 2016-03-02 | 包头北方创业股份有限公司 | Automatic equipment identification (AEI) real-time monitoring alarm system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20071010 Termination date: 20091118 |