CN101508396A - Elevator security control method based on RFID technology - Google Patents
Elevator security control method based on RFID technology Download PDFInfo
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- CN101508396A CN101508396A CNA2009100380349A CN200910038034A CN101508396A CN 101508396 A CN101508396 A CN 101508396A CN A2009100380349 A CNA2009100380349 A CN A2009100380349A CN 200910038034 A CN200910038034 A CN 200910038034A CN 101508396 A CN101508396 A CN 101508396A
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- transceiver
- control method
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Abstract
The invention discloses an elevator safety control method based on RFID technology, which is characterized by comprising that: a safety state detector and a transceiver in a safety loop of an elevator controller are combined; and through the association of a plurality of passive radio frequency identifying devices separately arranged on an elevator passage and an elevator cage and a switch in the safety loop, at least one transceiver sends a request signal and receives the response of the request signal, so the method can provide the transmission response expressing the safety state aiming at the request signal from the transceiver under the condition that the state of a corresponding parameter is safe, and does not provide the indication of the safe state when the corresponding parameter is not safe. Through the existence or inexistence of adjacent magnetic reluctances, the method can detect out the safe or unsafe state through the RFID, and is simple and convenient.
Description
Technical field
The present invention relates to the method for controlling security in elevator technology field, particularly a kind of elevator.
Background technology
At present, almost the safety return circuit of each elevator comprises a series of switch, each switch has movable contact, when parameter in safety condition following time, this contact connects between a pair of loop, and when parameter in unsafe condition following time, throw off at least one loop of this contact and safety return circuit.Switch comprises master cock, upper and lower passage limit switch and the overspeed switch at hoistway door lock switches, elevator door switch, emergency stop switch, cab top in safety return circuit.Different switches interconnect by line, must observe local government's regulation for the size and the position of line and conduit.In addition, because it is embedded wired, in case the building wiring is to provide safety return circuit, to be difficult to change the structure or the flat-bed building structure of building, elevator and hoistway door lock switches must be installed in door itself, therefore according to circumstances, be connected on cab and the building by flexible connecting line, difficult in maintenance, cost height, and line inconvenience.
Summary of the invention
Purpose of the present invention is exactly a kind of alerting ability, low cost, the low elevator security control method based on the RFID technology of safeguarding and being convenient to upgrade with low cost that improvement not only is provided that provides for the deficiency that solves prior art.
The present invention adopts following technical solution to realize above-mentioned purpose: a kind of elevator security control method based on the RFID technology, it is characterized in that, it is the safe condition in the electric life controller safety return circuit to be detected combine with transceiver, by a plurality of be divided on access to elevators and the elevator cage passive radio frequently means of identification be associated with switch in the safety return circuit, transmit interrogation signal and receive the response of described interrogation signal by at least one transceiver, make it under the situation of the state safety of relevant parameter, the transmission response of expression safe condition can be provided at the interrogation signal from described transceiver, and when relevant parameter is dangerous, do not provide the described indication of safe condition.
As further specifying of such scheme, the safety of described parameter or unsafe condition exist or do not exist come definite by magnetoresistive structures near passive radio frequency means of identification by in passive radio frequency means of identification periphery magnetoresistive structures being set.
Described magnetoresistive structures is near described passive radio means of identification existence frequently expression safe condition.
Described magnetoresistive structures exists and has magnetic resistance near described passive radio frequency means of identification represents unsafe condition.
Switch in the described safety return circuit comprises master cock, upper and lower passage limit switch and the overspeed switch at hoistway door lock switches, elevator door switch, emergency stop switch, cab top, the transmission response that passive radio frequency means of identification can provide button to activated at the interrogation signal from a described transceiver, and when the button of response does not activate, the described indication that does not provide button to activated.
The beneficial effect that the present invention adopts above-mentioned technical solution to reach is:
1, safety return circuit of the present invention has and neither relies on hardwired power supply, also disobeys battery-powered parts, and these parts are passive RFID, safe condition in the safety return circuit detects and combines with transceiver, avoid difficult wiring in the prior art, safeguarded inconvenience, problems such as cost height.
2, RFID is powered by electromagnetic energy, and only the signal of unique frequencies own or the signal of public frequency are responded, but this frequency has unique address code for independent RFID, contain other addresses and contain coherent signal in safety return circuit or the call button in this case by transmission, if the address mal, the frequency of RFID will be discerned response source, can accurately judge the elevator safety state, use simple, convenient.
Description of drawings
Fig. 1 is an elevator device sectional structure scheme drawing of the present invention;
Fig. 2～Fig. 4 is the rough schematic view of passive transceiver resonant tank of the present invention.
Description of reference numerals: 11, access door 12, access door 13, RFID passive transmitter 14, transceiver 15, transceiver 16, transceiver 17, elevator(lift) machine room 18, passive transmitter 19, transceiver 20, cond 21, inductor 23, switch 24, switch 27, cond 28, switch
The specific embodiment
A kind of elevator security control method of the present invention based on the RFID technology, it is the safe condition in the electric life controller safety return circuit to be detected combine with transceiver, by a plurality of be divided on access to elevators and the elevator cage passive radio frequently means of identification be associated with switch in the safety return circuit, transmit interrogation signal and receive the response of described interrogation signal by at least one transceiver, make it under the situation of the state safety of relevant parameter, the transmission response of expression safe condition can be provided at the interrogation signal from described transceiver, and when relevant parameter is dangerous, do not provide the described indication of safe condition.Wherein, the switch in the safety return circuit comprises master cock, upper and lower passage limit switch and the overspeed switch at hoistway door lock switches, elevator door switch, emergency stop switch, cab top.The form of response shows as the safety of parameter or unsafe condition by magnetoresistive structures being set the means of identification periphery frequently at passive radio, by magnetoresistive structures near passive radio frequently means of identification exist or do not exist and determine.Magnetoresistive structures is near described passive radio means of identification existence frequently expression safe condition; Magnetoresistive structures is near described passive radio means of identification existence frequently expression safe condition.
As shown in Figure 1, the passage of the elevator device that relates in the described elevator security control method comprises a plurality of access doors 11,12, has one group of door for each platform.Every group of door has and the corresponding relevant RFID passive transmitter 13 of access door lock, and the state of door lock is the part of safety return circuit, if the not locking of any door lock, the safety return circuit of elevator will lose efficacy.Passage is also arranged a plurality of transceivers 14 relevant with upper limit position switch and a plurality of transceivers 15,16 relevant with lower position switch therein, in elevator(lift) machine room 17, elevator overspeed detects will have corresponding passive transmitter 18, transceiver 19 can be inquired the state of the access door of three lowest deck, so that inquire the door lock state of each associated gate that is reflected by a relevant down passive transmitter 13 continuously.
RFID can be arranged to the security-related elevator parameter state of different modes reflection.As Fig. 2 and Fig. 3, the frequency that wherein contains cond 20 and inductor 21 determines that the RF loop is by switch 23 disconnections or by switch 24 connections.These any configurations cause RFID that any response is not provided.On the other hand, RFID can cause two to produce two different responses, a response expression safe condition, and another represents unsafe condition, as Fig. 4.Wherein, other cond 27 is connected with switch 28, and both are parallel to cond 20 and inductor 21.When state safety, cond 27 is in the loop, makes RFID respond under first frequency.Dangerous but if state becomes, switch 28 will respond under different frequency, and switch 28 disconnects, and cond 27 will be or not the loop, and then RFID will respond under the different frequency of expression expression unsafe condition.Use the double-response of this type to make controller identification detect the particular RFID of unsafe condition.
More than shown only be preferred embodiment of the present invention, can not limit the present invention's interest field with this, therefore the equivalent variations of being done according to the present patent application claim still belongs to the scope that the present invention is contained.
Claims (5)
1, a kind of elevator security control method based on the RFID technology, it is characterized in that, it is the safe condition in the electric life controller safety return circuit to be detected combine with transceiver, by a plurality of be divided on access to elevators and the elevator cage passive radio frequently means of identification be associated with switch in the safety return circuit, transmit interrogation signal and receive the response of described interrogation signal by at least one transceiver, make it under the situation of the state safety of relevant parameter, the transmission response of expression safe condition can be provided at the interrogation signal from described transceiver, and when relevant parameter is dangerous, do not provide the described indication of safe condition.
2, the elevator security control method based on the RFID technology according to claim 1, it is characterized in that: the safety of described parameter or unsafe condition exist or do not exist come definite by magnetoresistive structures near passive radio frequency means of identification by in passive radio frequency means of identification periphery magnetoresistive structures being set.
3, the elevator security control method based on the RFID technology according to claim 1 is characterized in that: described magnetoresistive structures is near described passive radio means of identification existence frequently expression safe condition.
4, the elevator security control method based on the RFID technology according to claim 1 is characterized in that: described magnetoresistive structures exists and has magnetic resistance near described passive radio frequency means of identification represents unsafe condition.
5, the elevator security control method based on the RFID technology according to claim 1, it is characterized in that: the switch in the described safety return circuit comprises master cock, upper and lower passage limit switch and the overspeed switch at hoistway door lock switches, elevator door switch, emergency stop switch, cab top, the transmission response that passive radio frequency means of identification can provide button to activated at the interrogation signal from a described transceiver, and when the button of response does not activate, the described indication that does not provide button to activated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100380349A CN101508396A (en) | 2009-03-19 | 2009-03-19 | Elevator security control method based on RFID technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100380349A CN101508396A (en) | 2009-03-19 | 2009-03-19 | Elevator security control method based on RFID technology |
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| Publication Number | Publication Date |
|---|---|
| CN101508396A true CN101508396A (en) | 2009-08-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNA2009100380349A Pending CN101508396A (en) | 2009-03-19 | 2009-03-19 | Elevator security control method based on RFID technology |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013040852A1 (en) * | 2011-09-20 | 2013-03-28 | Jiang Yongdong | Cloud computing-based system and method for management and control of elevator apparatus |
| CN104030121A (en) * | 2014-07-01 | 2014-09-10 | 范奉和 | Elevator safe operation data coupling device and operating method |
-
2009
- 2009-03-19 CN CNA2009100380349A patent/CN101508396A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013040852A1 (en) * | 2011-09-20 | 2013-03-28 | Jiang Yongdong | Cloud computing-based system and method for management and control of elevator apparatus |
| CN104030121A (en) * | 2014-07-01 | 2014-09-10 | 范奉和 | Elevator safe operation data coupling device and operating method |
| CN104030121B (en) * | 2014-07-01 | 2016-06-22 | 范奉和 | A kind of elevator safety operation data coupling devices and method of work |
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Application publication date: 20090819 |