CN100366473C - Method and device of locking and unlocking cars in multistage - Google Patents
Method and device of locking and unlocking cars in multistage Download PDFInfo
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- CN100366473C CN100366473C CNB2004100122293A CN200410012229A CN100366473C CN 100366473 C CN100366473 C CN 100366473C CN B2004100122293 A CNB2004100122293 A CN B2004100122293A CN 200410012229 A CN200410012229 A CN 200410012229A CN 100366473 C CN100366473 C CN 100366473C
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Abstract
The present invention belongs to the technical field of automatic control. The present invention relates to a method providing multi-stage automatic or hand-operated vehicle locking and unlocking to engineering machinery, and a device realizing the method. The present invention uses a technical scheme that a one-stage locking, two-stage locking and unlocking device for vehicles, and a running signal feedback device are arranged on construction machinery; the devices are connected with a remote monitoring device and a hand-operated device; the remote monitoring center or the hand-operated device sends out one-stage locking, two-stage locking and unlocking orders for vehicles. The device implementing the multi-stage locking and unlocking method for vehicles comprises a monitoring circuit, a computer control circuit and a transmission circuit; the monitoring circuit is connected with a monitored component of the engineering machinery; the monitoring circuit and the transmission circuit are connected with the computer control circuit. The multi-stage locking and unlocking method for vehicles avoids accident occurrence of the construction machinery caused by unknown field work conditions by remote control to the vehicle locking; vehicles are locked or unlocked manually by operation staff at a pinch.
Description
Technical field
The present invention relates to multistage manual lock, the method for separating car and the device thereof of reaching automatically of a kind of engineering machinery remote monitering device, belong to the automatic control technology field.
Background technology
In some complex structures of current use, expensive large-scale engineering machinery, a lot of remote information transmitting devices of having installed are arranged, in order to the service condition of supervision control engineering machinery and the state of machinery itself.Take place to lock car in order to prevent that Fei Benche driver from arbitrarily starting machinery and preventing to steal car on the one hand in actual use; On the other hand because mechanical price comparison costliness, much all buy with the monthly payment plan form, when occurring failing to pay the situation of money on time, also need to lock car in order in time to recover loan, therefore the function of the long-distance monitorng device installed of some vehicle utilization is implemented lock, is separated car, and the state of construction machinery and equipment has been played good supervisory function bit.But in use find, because the long-distance monitorng device of machinery is by monitoring and control centre machinery to be carried out distance control, many times the situation at mechanical execution scene is being had little understanding, when the mode of operation of machinery does not allow when needing monitoring and control centre immediately the machinery in the work to be locked for some reason, just serious accident might take place.As: machinery is opened a mine in the mine, and when machinery dug completely a pipeful of ore and turning round, if the locked flame-out suddenly or full car lever failures of machinery, machinery just had the danger of tumbling, and causes serious human casualty accident; Perhaps construction will come flood in the river course when machinery runs into, and when situations such as mine work will carrying out explosion, the danger zone of must travelling out, if at this moment machinery can't start because of locked, then may car crash.
Just need have multistage lock in these cases, the control monitor unit of separating the car function carries out step control to machinery, can lock the part system of machinery earlier, fuel oil control scale such as control machinery, make engine speed constant under idling mode, make the equipment work of machinery unable, driving engine can not stop working immediately like this, and machinery can normally be walked, can guarantee to drive to safe place when machinery runs into above-mentioned dangerous situation, when machinery roll away from the dangerous area stop the walking after, just can as required machinery be locked fully, make the machinery can't normal starting and the lever failures of full car.So just can both satisfy mechanical sales merchant's requirement, and can guarantee mechanical user's safety again.
In addition, also find in actual use, some regional GSM signal coverage rate is very low, monitoring and control centre can't carry out communication contact with long-distance monitorng device, when moving to these areas behind the remote lock of the monitored center of machinery, just can't carry out long-rangely having separated car, also can't carry out remote lock in addition machinery in this area construction.If need lock, Xie Cheshi in these cases, must implement manual lock by operating personal, separate Che Caineng and achieve the goal, therefore requiring long-distance monitorng device not only to have can long-range multistage automatic lock, separate the function that the function of car also will have the multistage lock of on-site manual, separate car, could really accomplish whenever and wherever possible vehicle to be controlled like this.
Summary of the invention
Technical matters to be solved by this invention provide a kind of long-distance monitorng device at a distance to construction machinery and equipment implement multistage automatically and the multistage lock of on-site manual, the device separating the method for car and realize these two kinds of methods.
The technical scheme that solves the problems of the technologies described above is:
A kind of multistage lock, the method for separating car, with I and II lock, separate truck control device and the train signal positioner is installed on the construction machinery and equipment, said apparatus is connected with long-distance monitorng device, at needs lock, Xie Cheshi, send lock, separate the car signal by long-distance monitorng device, construction machinery and equipment is implemented to lock or unlock.When machinery is in one-level lock car state, the CPU of long-distance monitorng device detect the train signal positioner send machinery walk signal the time, the control lock of will giving an order car device action, machinery can normally be walked, after machinery stops walking, walk signal disappears, and the CPU of long-distance monitorng device will give an order, and makes anti-joyride device continue to keep one-level lock car state.After machinery was in off working state, remote monitoring center can send the order of secondary latch car according to demand, made machinery be in secondary latch car state, or did not send out the order of secondary latch car and make machinery remain on one-level lock car state always.
A kind of multistage lock, the method for separating car, it with I and II lock, separate truck control device and be installed on the construction machinery and equipment, said apparatus is connected with manual control device, at needs lock, Xie Cheshi, send the I and II lock, separate the car signal by manual control device according to actual needs by operating personal, construction machinery and equipment is implemented to lock or unlock.
Implement above-mentioned multistage lock, separate the device of car method, it has observation circuit, computer control circuit, transmission circuit, above-mentioned observation circuit is connected with the monitored parts of construction machinery and equipment, its output termination computer control circuit, the signal input part of transmission circuit is connected with computer control circuit, and its improvements are; Its one-level is locked, separated the car device is relay J 1, the P2.5 signal output port of the coil one termination long-distance monitorng device CPU of relay J 1, other end ground connection, the a pair of normally closed interlock J1-1 of relay J 1 is serially connected in the circuit of the conveying voltage signal between fuel oil control scale and governor, the pump controller, a pair of normally open contact J1-2 is serially connected between VCC power supply and governor, the pump controller, and divider resistance R1, R2 are arranged between VCC power supply and normally open contact.The voltage signal that its walking pressure switch is carried to governor, pump controller is caused the P2.4 signal input part of long-distance monitorng device CPU by signal connecting line.
Implement above-mentioned multistage lock, separate the device of car method, its first kind of secondary latch, to separate the car device be relay J 2, the P2.6 signal output port of the coil one termination long-distance monitorng device CPU of relay J 2, other end ground connection, a pair of normally closed interlock J2-1 of relay J 2 is serially connected in fire switch C terminal and carries in the circuit of voltage signal to governor, pump controller.
Implement above-mentioned multistage lock, separate the device of car method, its second kind of secondary latch, to separate the car device be relay J 3, the P2.7 signal output port of the coil one termination long-distance monitorng device CPU of relay J 3, other end ground connection, a pair of normally closed interlock J3-1 of relay J 3 is serially connected in the circuit of the conveying voltage signal between fire switch BR terminal and governor, the pump controller.
Implement above-mentioned multistage lock, separate the device of car method, its the third secondary latch, to separate the car device be relay J 4, the P2.0 signal output port of the coil one termination long-distance monitorng device CPU of relay J 4, other end ground connection, a pair of normally closed interlock J4-1 of relay J 4 is serially connected in PPC (guide's oil circuit) hydraulic lock switch and carries in the circuit of voltage signal to governor, pump controller.
Implement above-mentioned multistage lock, separate the device of car method, two contacts of the normally closed interlock of described relay J 1 are A, B, wherein the B BOR Bunker of Redelivery is controlled the scale output line, A connects the fuel oil control scale signal input part of governor, pump controller, another of relay is A, C to two contacts of normally open contact, and C is connected between two divider resistance R1, the R2.
Implement above-mentioned multistage lock, separate the device of car method, the PPC pressure switch has lead to be connected between the P2.3 signal input part of voltage signal lead that governor, pump controller are carried and long-distance monitorng device CPU; Fuel oil control scale has lead to be connected between the P2.2 signal input part of voltage signal lead that governor, pump controller are carried and long-distance monitorng device CPU.
The method of adopt this multistage lock, separating car, can send lock, separate the car order by tele-control system or the manual anti-joyride device of on-the-spot manipulation, when machinery by after the remote monitoring center I and II locking, can be by manual lock, separate the car device machinery is removed the I and II locking; Same machinery with manual lock, separate the locking of car device I and II after, also can remove I and II to machinery and lock by remote monitoring center.Can make machinery be in multiple lock car state like this, avoided in Long-distance Control lock car not having an accident, to be in situations such as unfavoured state and position owing to do not understand the construction machinery and equipment that the field activity situation causes, and when the local long-distance monitorng device that the GSM signal does not cover can't carry out communication contact with monitoring and control centre, also can implement manual lock, separate car by the operation person of going into.The function of vehicle remote control monitor unit has been given full play in this design, and simple in structure, easy for installation.
Description of drawings
Fig. 1 is one-level of the present invention and manual lock, separate the car schematic circuit diagram;
Fig. 2 is secondary latch of the present invention, separate the schematic circuit diagram of first kind of embodiment of car;
Fig. 3 is secondary latch of the present invention, separate the schematic circuit diagram of second kind of embodiment of car;
Fig. 4 is secondary latch of the present invention, separate the schematic circuit diagram of the third embodiment of car; Among the figure: 1, governor, pump controller 2, fuel oil control scale 3, walking pressure switch
4, PPC pressure switch 5, fire switch 6, PPC hydraulic lock switch
The specific embodiment
At first it is divided into one-level lock car and secondary latch car with the lock-out state of machinery, and so-called one-level lock car is meant that the fuel oil control scale of machinery lost efficacy; The invariablenes turning speed of driving engine is in idling, and the equipment of machinery is unable, but allows its normal walking; The secondary latch car divides three kinds of situations: first kind of situation is can't start after vehicle stops working; Second kind of situation be after machinery starts car very short time (about 5 seconds) with regard to auto shut down; The third situation is the full car lever failures of machinery.
Multistage lock, separate the design of car method and Design of device thereof and be: when machinery need be locked car, locking mechanics control system made mechanical cisco unity malfunction earlier, and then whether decision locks machinery integral according to demand.Embodiment is that the contact with relay is serially connected in the control circuit of machinery, utilize central process unit (CPU) the indicating relay action in the long-distance monitorng device then, the contact of relay disconnects the path of normal operation, thereby realize lock car purpose, the different actuating of relay realizes the lock car of different stage; Same reason when machinery is unlocked, is utilized the central process unit indicating relay action in the long-distance monitorng device, and the contact of relay is connected the path of normal operation, mechanical just energy normal operation.
Fig. 1 shows is that two contact A, the B of a pair of normally closed interlock J1-1 of relay J 1 are serially connected in fuel oil control scale 2 and give situation in the circuit that governor, pump controller 1 carry voltage signal.The P2.5 signal output part of the CPU of the coil one termination long-distance monitorng device of relay J 1, other end ground connection, the voltage signal that walking pressure switch 3 is carried to governor, pump controller is caused the P2.4 signal input port of long-distance monitorng device CPU by signal connecting line.
Under normal circumstances, can carry the voltage signal of a variation to governor, pump controller by the normally closed interlock J1-1 of relay J 1 during the gear change of fuel oil control scale, governor, pump controller send corresponding instruction according to the voltage signal of carrying to governor motor, and governor motor promotes or reduce the rotating speed of driving engine according to the instruction of receiving.When the CPU of long-distance monitorng device receives the lock car instruction that mechanical tele-control system sends, will give the coil electricity of relay J 1, disconnect above-mentioned normally closed interlock J1-1, connect two contact A, the C of normally open contact J1-2, so the constant potential signal of divider resistance is caused governor, pump controller, thereby makes driving engine constant under a rotating speed.By selecting the divider resistance of different resistances, can engine speed is constant in idling mode, at this moment because fuel oil control scale carries the circuit of voltage signal to be cut off to governor, pump controller, so no matter how the gear of fuel oil control scale changes, the instruction that governor motor obtains is in idling all the time with motor speed control, the horsepower output of driving engine is minimum like this, the locked back of machinery fuel oil degree of control dish lost efficacy, so the rotating speed of driving engine can't promote, the unable phenomenon of work will appear in machinery.
Because long-distance monitorng device is a distance control machinery, do not understand the environment of machine work, for avoiding occurring dangerous situation, so must allow machinery normally walk.Its principle is: the mouth in the walking pressure switch has a signal line to cause the signal input part of long-distance monitorng device CPU, when the walking pressure switch is closed, the CPU of long-distance monitorng device detects the walking voltage signal of walking pressure switch output, will give the coil blackout of relay J 1, make two contact A of the normally closed interlock J1-1 of relay, B connects, fuel oil control scale recovers normal like this, machinery can normally be walked, when machinery arrival perch stops to walk, the walking pressure switch disconnects, send the voltage signal that machinery stops to walk for the CPU of mechanical remote control monitor unit, CPU detects vehicle and also is in the lock state, will continue coil electricity, make normally closed interlock A to relay J 1, B disconnects, and makes it continue to keep one-level lock car state at idling mode the invariablenes turning speed of machinery.
What Fig. 2 showed is first kind of embodiment of secondary latch car: a pair of normally closed interlock J2-1 of relay J 2 is serially connected in the C terminal of fire switch 5 to the situation in the circuit of governor, pump controller conveying voltage signal as shown in the figure.The P2.6 signal output port of the CPU of the coil one termination long-distance monitorng device of relay J 2, other end ground connection.
The starting circuit of fire switch C terminal control machinery, cranking signal could arrive starting relay through the C terminal when machinery starts.Under normal circumstances J2-1 is in normally off, when machinery starts, cranking signal arrives starting relay by J2-1, and lock during car the CPU of long-distance monitorng device send instruction and make J2-1 be in off-state, like this machinery can auto shut down after locked can also normal operation, but after machinery is flame-out, because of the trigger circuit disconnection of machinery, cranking signal can't reach starting relay, so can't start once more.
Second kind of embodiment of the secondary latch car that Fig. 3 shows: a pair of normally closed interlock J3-1 of relay J 3 is serially connected in the BR terminal of fire switch 5 to the situation in the circuit of governor, pump controller conveying voltage signal as shown in the figure.The P2.7 signal output port of the CPU of the coil one termination long-distance monitorng device of relay J 3, other end ground connection.
The BR terminal of fire switch is controlled the connecting and disconnecting of full car circuit, the rotation fire switch is connected the circuit of BR terminal when machinery needs work, the BR terminal of fire switch is in on-state always in machine work, when machinery need stop working, can rotate the circuit that fire switch disconnects the BR terminal.Under normal circumstances, behind the engine starting, fire switch BR terminal is given governor by a pair of normally closed interlock J3-1 of relay J 3 always, pump controller provides a stable voltage signal, and when the lock car, the CPU of long-distance monitorng device receives the instruction that mechanical tele-control system sends, will give relay J 3 coil electricities, disconnect this a pair of normally closed interlock J3-1, open-circuit line, governor like this, pump controller detects fire switch BR terminal output voltage signal by high step-down, think that the driver has turned off fire switch, the governor motor action of control driving engine, with engine off, behind engine off, CPU also disappears for the signal voltage of relay J 3 thereupon, the normally closed interlock J3-1 closure of relay J 3, after driving engine started once more, CPU detects the instruction of lock car did not have releasing will send the normally closed interlock J3-1 disconnection that instruction makes relay J 3 once more, and driving engine is flame-out once more.Driving engine is in and just starts and will stop working like this, state that can't normal operation.
What Fig. 4 showed is the third embodiment of secondary latch car: a pair of normally closed interlock J4-1 of relay J 4 is serially connected in PPC hydraulic lock switch 6 to the situation in the circuit of governor, pump controller conveying voltage signal as shown in the figure.The P2.0 signal output port of the CPU of the coil one termination long-distance monitorng device of relay J 4, other end ground connection.
PPC hydraulic lock switch is controlled the connecting and disconnecting of full car guide oil circuit, must be with PPC hydraulic lock switch closure machinery ability normal operation, if PPC hydraulic lock switch is in off-state, guide's oil circuit of machinery will be in off-state, and full car does not have any action.Under normal circumstances J4-1 is in normally off, when PPC hydraulic lock switch closure, a pair of normally closed interlock J4-1 by J4 gives governor, stable voltage signal of pump controller, and governor, pump controller send the full car guide of instruction control oil circuit according to the voltage signal that receives and connect.And lock during car the CPU of long-distance monitorng device send instruction and make J4-1 be in off-state, like this machinery locked after, because of PPC hydraulic lock switch carries the circuit of voltage signal to be cut off to governor, pump controller, so no matter PPC hydraulic lock switch is in closure or off-state, governor, pump controller think that all PPC hydraulic lock switch is in off-state, Ji Xie guide's oil circuit is in off-state all the time like this, the not action of full car.
Above-mentioned manual multistage lock, the method and the Design of device design of separating car are: long distance control system is with the PPC pressure switch, when fuel oil control scale rule changes to governor, the voltage signal of pump controller output is as one, secondary latch, separate among the CPU that the car password deposits long-distance monitorng device in, can send lock by rotation fuel oil control scale and manipulation PPC joystick to the CPU of long-distance monitorng device at the scene like this, separate the car signal, the CPU of long-distance monitorng device is according to the cooresponding lock of detected signal, separate the corresponding lock of the indication car actuating of relay of giving an order of car rank and realize one, secondary latch, separate car.
First kind of embodiment of above-mentioned manual multistage lock, the method for separating car and device is: as shown in Figure 1 fuel oil is controlled scale and carried the circuit of voltage signal to cause the P2.2 signal input part of the CPU of long-distance monitorng device to governor, pump controller.Fuel oil control scale 2 is adjustable resistances, change the voltage signal that flows to governor, pump controller by the size that changes resistance, the signal voltage of each gear output of fuel oil control scale is fixed, when fuel oil is controlled the scale gear according to the certain rule conversion, will export the voltage signal of regular variation.The signal voltage of exporting respectively as 1,2,3 gears of fuel oil control scale is A, B, C volt, then fuel oil is controlled scale and will be exported continuous B-C-A volt voltage signal according to the rotation of 2-3-1 order.Therefore, the voltage signal that can select above-mentioned variation as lock, separate in the middle of the CPU that the car password is input to long-distance monitorng device, the voltage signal that different rules change can corresponding respectively I and II lock, separate car.At needs lock, Xie Cheshi, can rotate fuel oil control scale in certain sequence, fuel oil control scale will send voltage signal to CPU by signal connecting line, CPU according to the cooresponding lock of detected voltage signal, separate the car rank and can control the different lock car actuating of relay respectively and realize locking car or unlock.
Second kind of embodiment of above-mentioned manual multistage lock, the method for separating car and device is: carry the circuit of voltage signal to cause the P2.3 signal input part of the CPU of long-distance monitorng device to governor, pump controller PPC pressure switch 4 as shown in Figure 1, when the PPC pressure switch disconnects, fixing signal voltage is arranged in this circuit, signal voltage reduced near 0 volt when the PPC pressure switch was connected, when joystick changes regularly, the PPC pressure switch is with disconnection, the closure of its rule, the also regular thereupon variation of signal voltage.Therefore, can according to above-mentioned fuel oil control dial locker, the method for separating car carry out the PPC pressure switch lock, separate car.Equally, with the signal voltage that changes in the PPC pressure switch as lock car password setting in CPU, when the PPC joystick changes in certain sequence, CPU according to the cooresponding lock of detected voltage signal, separate the car rank, will control different lock car relays respectively and realize locking car or remove locking machinery.
When machinery during in the district work that the GSM signal can't cover, long-distance monitorng device and remote monitoring center just can't carry out communication contact.At this moment need locking machinery or when unlocking, just can be by on-the-spot rotating machinery fuel oil control scale, manipulation PPC joystick, the voltage signal that utilizes its output rule is as locking, separate the CPU that long-distance monitorng device is issued in the car instruction, and the actuating of relay of control lock car locks machinery on request or unlocks.
Claims (8)
1. a multistage lock, the method for separating car is characterized in that: at needs lock, Xie Cheshi, sent lock, separated the car signal by long-distance monitorng device, construction machinery and equipment is implemented to lock or unlock:
When machinery is in one-level lock car state, the CPU of long-distance monitorng device detect the train signal positioner send machinery walk signal the time, the control lock of will giving an order car device action, machinery can normally be walked, after machinery stops walking, walk signal disappears, and the CPU of long-distance monitorng device will give an order, and makes anti-joyride device continue to keep one-level lock car state;
After machinery was in off working state, remote monitoring center can send the order of secondary latch car according to demand, made machinery be in secondary latch car state or do not send out the order of secondary latch car to make machinery remain on one-level lock car state always.
2. a kind of multistage lock according to claim 1, the method for separating car, it is characterized in that at needs lock, Xie Cheshi, send the I and II lock, separate the car signal by manual control device according to actual needs by operating personal, construction machinery and equipment is implemented to lock or unlock.
3. implement above-mentioned multistage lock, separate the device of car method, it with I and II lock, separate truck control device and the train signal positioner is installed on the construction machinery and equipment, said apparatus is connected with long-distance monitorng device or manual control device; It has observation circuit, computer control circuit, transmission circuit, above-mentioned observation circuit is connected with the monitored parts of construction machinery and equipment, its output termination computer control circuit, the signal input part of transmission circuit is connected with computer control circuit, it is characterized in that: its one-level lock, separating the car device is relay (J1), (P2.5) signal output port of the coil one termination long-distance monitorng device CPU of relay (J1), other end ground connection, the a pair of normally closed interlock (J1-1) of relay (J1) is serially connected in fuel oil control scale and governor, in the circuit of the conveying voltage signal between the pump controller, a pair of normally open contact (J1-2) is serially connected in VCC power supply and governor, between the pump controller, divider resistance (R1 is arranged between VCC power supply and normally open contact, R2), its walking pressure switch is to governor, there is signal connecting line to be connected between the voltage signal lead that pump controller is carried and (P2.4) signal input part of long-distance monitorng device CPU;
Its a kind of secondary latch, to separate the car device be relay (J2), (P2.6) signal output port of the coil one termination long-distance monitorng device CPU of relay (J2), the a pair of normally closed interlock (J2) one that other end ground connection, relay are defended is serially connected in fire switch (C) terminal and carries in the circuit of voltage signal to governor, pump controller.
4. the above-mentioned multistage lock of enforcement according to claim 3, separate the device of car method, it is characterized in that: its second kind of secondary latch, to separate the car device be relay (J3), (P2.7) signal output port of the coil one termination long-distance monitorng device CPU of relay (J3), other end ground connection, a pair of normally closed interlock (J3-1) of relay (J3) are serially connected in the circuit of the conveying voltage signal between fire switch BR terminal and governor, the pump controller.
5. the above-mentioned multistage lock of enforcement according to claim 3, separate the device of car method, it is characterized in that: its third secondary latch, to separate the car device be relay (J4), (P2.0) signal output port of the coil one termination long-distance monitorng device CPU of relay (J4), other end ground connection, a pair of normally closed interlock (J4-1) of relay (J4) are serially connected in PPC hydraulic lock switch and carry in the circuit of voltage signal to governor, pump controller.
According to claim 4 or the above-mentioned multistage lock of 5 described enforcements, separate the device of car method, it is characterized in that: two contacts of the normally closed interlock of described relay (J1) are A, B, wherein the B BOR Bunker of Redelivery is controlled the scale output line, A connects the fuel oil control scale signal input part of governor, pump controller, and another of relay is A, C to two contacts of normally open contact; C is connected between two divider resistances (R1, R2).
7. the above-mentioned multistage lock of enforcement according to claim 6, separate the device of car method, it is characterized in that: described signal connecting line (4) terminates at machinery, and promptly (C) pressure switch is in the circuit of engine oil door controller conveying voltage signal, and the other end is connected on the signal input part of airborne control monitor unit CPU.
8. the above-mentioned multistage lock of enforcement according to claim 7, separate the device of car method, it is characterized in that: the PPC pressure switch has lead to be connected between (P2.3) signal input part of voltage signal lead that governor, pump controller are carried and long-distance monitorng device CPU; Fuel oil control scale has lead to be connected between (P2.2) signal input part of voltage signal lead that governor, pump controller are carried and long-distance monitorng device CPU.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100122293A CN100366473C (en) | 2004-04-12 | 2004-04-12 | Method and device of locking and unlocking cars in multistage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CNB2004100122293A CN100366473C (en) | 2004-04-12 | 2004-04-12 | Method and device of locking and unlocking cars in multistage |
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| CN1562673A CN1562673A (en) | 2005-01-12 |
| CN100366473C true CN100366473C (en) | 2008-02-06 |
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Families Citing this family (6)
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| CN101118660B (en) * | 2007-08-03 | 2010-06-16 | 童一帆 | Engineering machinery password locking and unlocking method and apparatus |
| CN102182360B (en) * | 2011-03-28 | 2013-01-23 | 中联重科股份有限公司 | Locking method and locking system of engineering machinery and engineering machinery |
| CN102765368A (en) * | 2012-08-10 | 2012-11-07 | 杭州鸿泉数字设备有限公司 | Secondary auto locking implementation method |
| CN103882903B (en) * | 2014-03-12 | 2016-08-24 | 华侨大学 | Excavator batch (-type) vehicle locking method and locking system |
| CN105989635A (en) * | 2015-02-06 | 2016-10-05 | 北京朗信传动与控制技术有限公司 | Engineering machinery calendar locking algorithm |
| CN106541850B (en) * | 2015-09-18 | 2020-05-22 | 比亚迪股份有限公司 | Controller, control method and control system for remotely locking electric vehicle |
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| CN1226012A (en) * | 1998-12-16 | 1999-08-18 | 许镇光 | Comprehensive control computer system for vehicles |
| CN2448647Y (en) * | 2000-11-06 | 2001-09-19 | 李俊银 | Long distance remote controlled electronic puzzle lock for car |
| CN2504147Y (en) * | 2001-09-28 | 2002-08-07 | 严行慈 | Distance wireless remote controller |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1562673A (en) | 2005-01-12 |
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Assignee: Shijiazhuang Development Zone Tianyuan Technology Co., Ltd. Assignor: Han Xiaoming Contract fulfillment period: 2008.12.20 to 2028.12.20 Contract record no.: 2009130000017 Denomination of invention: Method and device of locking and unlocking cars in multistage Granted publication date: 20080206 License type: Exclusive license Record date: 20090302 |
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Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2008.12.20 TO 2028.12.20; CHANGE OF CONTRACT Name of requester: SHIJIAZHUANG TIANYUAN CONSTRUCTION MACHINERY CO., Effective date: 20090302 |
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Effective date of registration: 20201208 Address after: 050000 no.227 Huanghe Avenue, hi tech Zone, Shijiazhuang City, Hebei Province Patentee after: SHIJIAZHUANG DEVELOPMENT ZONE TIANYUAN TECHNOLOGYCO., Ltd. Address before: 050061 No. 18, No. 2 West Ring Road, Hebei, Shijiazhuang Patentee before: Han Xiaoming |