CN204873736U - Fork truck personnel are close alarm system based on RFID - Google Patents
Fork truck personnel are close alarm system based on RFID Download PDFInfo
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- CN204873736U CN204873736U CN201520616922.5U CN201520616922U CN204873736U CN 204873736 U CN204873736 U CN 204873736U CN 201520616922 U CN201520616922 U CN 201520616922U CN 204873736 U CN204873736 U CN 204873736U
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Abstract
The utility model relates to a RFID radio frequency technical field, a fork truck personnel are close alarm system based on RFID particularly, alarm system includes the RFID driver, the RFID label, RFID reads the ware, acousto -optic warning lamp and wireless transmission module, RFID driver activation RFID label makes it send radiofrequency signal, RFID reads the ware and receives the radiofrequency signal that the RFID label sent, be equipped with central processing unit MCU in the RFID reading ware, the central processing unit MCU that RFID read in the ware controls acousto -optic warning lamp and wireless transmission module according to radiofrequency signal, central processing unit MCU connects warning circuit respectively, sensor control circuit and wireless transmission module, and carry out the data interaction through wireless transmission module and data center. The utility model discloses a RFID technique is close to early warning and dangerous suggestion, is close to fork truck or exceeds the speed of prescribing a limit to that acousto -optic warning is in order reminding fork truck driver and pedestrian often as personnel, and protection personnel's personal safety reduces and appears unexpected probability among the operation process.
Description
[technical field]
The utility model relates to RFID radio frequency arts, specifically a kind of fork truck personnel approach warning system based on RFID.
[background technology]
Fork truck is a kind of industrial transport instrument, and it plays very important role in the logistics system of enterprise, is the main force in material conveyance equipment, can be widely used in each department in the national economy such as station, harbour, airport, factory, warehouse.World War II, fork truck is developed.China manufactures fork truck from early 1950s, and particularly along with the fast development of China's economic, the material handling of most of enterprise has departed from original a dead lift, the substitute is the conveyorization based on fork truck.But fork truck in use, if excessive velocities, very easily cause casualties.Therefore, conventional fork truck reminds driver limit the speed of fork truck and take self certain Anticollision Measures for the fork truck in advancing by annunciator in use now, but the method accuracy rate, the poor stability that use, and the scene that fork truck is thrusted into is not taken into account, there is potential safety hazard.
[summary of the invention]
The purpose of this utility model is the safety in order to protect personnel in fork truck work area, avoids the situation that accident occurs, and provides a kind of personnel the fork truck personnel approach warning system based on RFID close to automatically, effectively, accurately reporting to the police during fork truck.
To achieve these goals, design a kind of fork truck personnel approach warning system based on RFID, described warning comprises RFID exiter, RFID label tag, RFID reader, audible-visual alarm lamp and wireless transport module, RFID exiter activates RFID label tag makes it send radiofrequency signal, RFID reader receives the radiofrequency signal that RFID label tag sends, central processor MCU is provided with in RFID reader, central processor MCU in RFID reader controls audible-visual alarm lamp and wireless transport module according to radiofrequency signal, central processor MCU connects warning circuit respectively, sensor control circuit and wireless transport module, and carry out data interaction by wireless transport module and data center.
Described sensor control circuit comprises connector P3, resistance R47, R48, R49, R50, R51, R52, electric capacity C32, C33, C34, C35, op amp U4A, U4B forms, No. 2 pins of op amp U4A are connected to after No. 1 pin contact resistance R47 of described connector P3, high level voltage is connected after No. 3 pin contact resistance R49 of op amp U4A, and extract No. 1 of difference shunt resistance R50 and electric capacity C33, op amp U4A between one end and ground out, difference shunt resistance R44 between No. 2 pins, electric capacity C32, No. 5 pins of op amp U4B are connected to after No. 1 extraction one end contact resistance R48 of op amp U4A, another extraction one end connects electric capacity C34 one end, the electric capacity C34 other end is divided into three tunnels, one tunnel is connected to No. 6 pins of op amp U4B after connecting electric capacity C36, one tunnel is connected to No. 8 pins of op amp U4B after connecting electric capacity C35, another road contact resistance R51, be connected to No. 7 pins of op amp U4B after R52, No. 7 pins of op amp U4B connect central processor MCU as sensor signal input end, and No. 8 pins connect high level voltage, No. 4 pin ground connection.
Described warning circuit is by switch U3, diode D2, aerotron Q1, resistance R1, R2, R3, photoelectrical coupler U1 forms, No. 2 ends of switch U3 connect high level voltage, the collecting electrode of No. 1 end connecting triode Q1 of switch U3, No. 1 of switch U3 end and No. 2 hold between parallel diode D2, No. 3 of switch U3 ends are connected between holding with No. 4 audible-visual alarm lamp, the grounded emitter of aerotron Q1, the base stage of aerotron Q1 connects the emitter of the inner aerotron of photoelectrical coupler U5, and ground connection after the contact resistance R3 of tap one end, high level voltage is connect after the collecting electrode connecting resistance R2 of the inner aerotron of photoelectrical coupler U5, high level voltage is connected after the positive pole contact resistance R1 of photoelectrical coupler U5 interior light emitting diodes, and extract one end out and be connected to central processor MCU and receive its alerting signal provided, the negative earth of photoelectrical coupler U5 interior light emitting diodes.
Described wireless transport module is bluetooth module or WIFI wireless module, mobile communication module.
Compared with the existing technology, its advantage is the utility model: adopt RFID technique to carry out close to early warning and dangerous tip, when having personnel close to sound and light alarm during fork truck to remind truck driver and pedestrian, and the personal safety of protection personnel; The sound and light alarm when fork truck exceeds restriction speed, reduces in operating process and occurs unexpected probability; Effective excitation radius of RFID label tag exiter adjusts by RFID reader, and the control circuit in RFID reader can control audible-visual alarm lamp accurately and rapidly and realize reporting to the police; And be provided with wireless transport module, as required, corresponding time gap can be set and reports an alert data.
[accompanying drawing explanation]
Fig. 1 is block schematic illustration of the present utility model;
Fig. 2 is schematic circuit diagram of the present utility model;
Specify Fig. 1 as Figure of abstract of the present utility model.
[detailed description of the invention]
Below in conjunction with accompanying drawing, the utility model is described in further detail, and the structure of this device and principle are very clearly concerning the people of this specialty.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
The composition connection diagram of this warning is see Fig. 1, comprise RFID exiter, RFID label tag, RFID reader, audible-visual alarm lamp and wireless transport module, RFID exiter activates RFID label tag makes it send radiofrequency signal, RFID reader receives the radiofrequency signal that RFID label tag sends, central processor MCU is provided with in RFID reader, central processor MCU in RFID reader controls audible-visual alarm lamp and wireless transport module according to radiofrequency signal, central processor MCU also connects warning circuit respectively, sensor control circuit and wireless transport module, and carry out data interaction by wireless transport module and data center.
As shown in Figure 2, sensor control circuit connector P3, resistance R47, R48, R49, R50, R51, R52, electric capacity C32, C33, C34, C35, op amp U4A, U4B forms, No. 2 pins of op amp U4A are connected to after No. 1 pin contact resistance R47 of connector P3, connect high level voltage after No. 3 pin contact resistance R49 of op amp U4A, and extract No. 1 of difference shunt resistance R50 and electric capacity C33, op amp U4A between one end and ground out, difference shunt resistance R44 between No. 2 pins, electric capacity C32, No. 5 pins of op amp U4B are connected to after No. 1 extraction one end contact resistance R48 of op amp U4A, another extraction one end connects electric capacity C34 one end, the electric capacity C34 other end is divided into three tunnels, one tunnel is connected to No. 6 pins of op amp U4B after connecting electric capacity C36, one tunnel is connected to No. 8 pins of op amp U4B after connecting electric capacity C35, another road contact resistance R51, be connected to No. 7 pins of op amp U4B after R52, No. 7 pins of op amp U4B connect central processor MCU as sensor signal input end, and No. 8 pins connect high level voltage, No. 4 pin ground connection.
Warning circuit is by switch U3, diode D2, aerotron Q1, resistance R1, R2, R3, photoelectrical coupler U1 forms, No. 2 ends of switch U3 connect high level voltage, the collecting electrode of No. 1 end connecting triode Q1 of switch U3, No. 1 of switch U3 end and No. 2 hold between parallel diode D2, No. 3 of switch U3 ends are connected between holding with No. 4 audible-visual alarm lamp, the grounded emitter of aerotron Q1, the base stage of aerotron Q1 connects the emitter of the inner aerotron of photoelectrical coupler U5, and ground connection after the contact resistance R3 of tap one end, high level voltage is connect after the collecting electrode connecting resistance R2 of the inner aerotron of photoelectrical coupler U5, high level voltage is connected after the positive pole contact resistance R1 of photoelectrical coupler U5 interior light emitting diodes, and extract one end out and be connected to central processor MCU and receive its alerting signal provided, the negative earth of photoelectrical coupler U5 interior light emitting diodes.
When RFID label tag enters in fork truck alarm range, central processor MCU in RFID reader can generate alerting signal, thus controlling audible-visual alarm lamp warning, label information is uploaded to final terminal by wireless transport module, the signal of sensor can pass to central processor MCU simultaneously.
During use, this device installed by fork truck, when wearing the personnel of RFID label tag close in fork truck alarming anticollision (acquiescence 2m) zone of alarm, RFID label tag activates and enters mode of operation, and send the signal of a certain frequency, RFID label tag reader reads information decoding, and judges whether to need to report to the police, and delivers to central controller and carries out relevant data process.Data in central controller can according to client's needs, and set corresponding time gap and report an alert data to data center, native system data reporting schemes can be bluetooth module or WIFI wireless module, mobile communication module.
Claims (4)
1. the fork truck personnel approach warning system based on RFID, it is characterized in that described warning comprises RFID exiter, RFID label tag, RFID reader, audible-visual alarm lamp and wireless transport module, RFID exiter activates RFID label tag makes it send radiofrequency signal, RFID reader receives the radiofrequency signal that RFID label tag sends, central processor MCU is provided with in RFID reader, central processor MCU in RFID reader controls audible-visual alarm lamp and wireless transport module according to radiofrequency signal, central processor MCU connects warning circuit respectively, sensor control circuit and wireless transport module, and carry out data interaction by wireless transport module and data center.
2. a kind of fork truck personnel approach warning system based on RFID as claimed in claim 1, it is characterized in that described sensor control circuit is by connector P3, resistance R47, R48, R49, R50, R51, R52, electric capacity C32, C33, C34, C35, op amp U4A, U4B forms, No. 2 pins of op amp U4A are connected to after No. 1 pin contact resistance R47 of described connector P3, high level voltage is connected after No. 3 pin contact resistance R49 of op amp U4A, and extract difference shunt resistance R50 and electric capacity C33 between one end and ground out, No. 1 of op amp U4A, difference shunt resistance R44 between No. 2 pins, electric capacity C32, No. 5 pins of op amp U4B are connected to after No. 1 extraction one end contact resistance R48 of op amp U4A, another extraction one end connects electric capacity C34 one end, the electric capacity C34 other end is divided into three tunnels, one tunnel is connected to No. 6 pins of op amp U4B after connecting electric capacity C36, one tunnel is connected to No. 8 pins of op amp U4B after connecting electric capacity C35, another road contact resistance R51, No. 7 pins of op amp U4B are connected to after R52, No. 7 pins of op amp U4B connect central processor MCU as sensor signal input end, No. 8 pins connect high level voltage, No. 4 pin ground connection.
3. a kind of fork truck personnel approach warning system based on RFID as claimed in claim 1, it is characterized in that described warning circuit is by switch U3, diode D2, aerotron Q1, resistance R1, R2, R3, photoelectrical coupler U1 forms, No. 2 ends of switch U3 connect high level voltage, the collecting electrode of No. 1 end connecting triode Q1 of switch U3, No. 1 of switch U3 end and No. 2 hold between parallel diode D2, No. 3 of switch U3 ends are connected between holding with No. 4 audible-visual alarm lamp, the grounded emitter of aerotron Q1, the base stage of aerotron Q1 connects the emitter of the inner aerotron of photoelectrical coupler U5, and ground connection after the contact resistance R3 of tap one end, high level voltage is connect after the collecting electrode connecting resistance R2 of the inner aerotron of photoelectrical coupler U5, high level voltage is connected after the positive pole contact resistance R1 of photoelectrical coupler U5 interior light emitting diodes, and extract one end out and be connected to central processor MCU and receive its alerting signal provided, the negative earth of photoelectrical coupler U5 interior light emitting diodes.
4. a kind of fork truck personnel approach warning system based on RFID as claimed in claim 1, is characterized in that described wireless transport module is bluetooth module or WIFI wireless module, mobile communication module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520616922.5U CN204873736U (en) | 2015-08-17 | 2015-08-17 | Fork truck personnel are close alarm system based on RFID |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520616922.5U CN204873736U (en) | 2015-08-17 | 2015-08-17 | Fork truck personnel are close alarm system based on RFID |
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| CN204873736U true CN204873736U (en) | 2015-12-16 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105581411A (en) * | 2016-01-26 | 2016-05-18 | 大唐国际发电股份有限公司重庆分公司 | Intelligent safety helmet and personnel location management system and method |
| CN110304584A (en) * | 2018-07-26 | 2019-10-08 | 林德（中国）叉车有限公司 | A kind of fork truck pedestrian's avoiding collision based on ultra-wide band technology |
-
2015
- 2015-08-17 CN CN201520616922.5U patent/CN204873736U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105581411A (en) * | 2016-01-26 | 2016-05-18 | 大唐国际发电股份有限公司重庆分公司 | Intelligent safety helmet and personnel location management system and method |
| CN105581411B (en) * | 2016-01-26 | 2018-03-16 | 大唐国际发电股份有限公司重庆分公司 | Intelligent safety helmet and personnel positioning management system and method |
| CN110304584A (en) * | 2018-07-26 | 2019-10-08 | 林德（中国）叉车有限公司 | A kind of fork truck pedestrian's avoiding collision based on ultra-wide band technology |
| CN110304584B (en) * | 2018-07-26 | 2020-10-27 | 林德（中国）叉车有限公司 | Forklift pedestrian collision avoidance method based on ultra-bandwidth technology |
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