CN103633670B - The charging system of the antitheft detection of tool - Google Patents
The charging system of the antitheft detection of tool Download PDFInfo
- Publication number
- CN103633670B CN103633670B CN201210295870.7A CN201210295870A CN103633670B CN 103633670 B CN103633670 B CN 103633670B CN 201210295870 A CN201210295870 A CN 201210295870A CN 103633670 B CN103633670 B CN 103633670B
- Authority
- CN
- China
- Prior art keywords
- resistance
- signal
- detection
- electrically connected
- framework
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Burglar Alarm Systems (AREA)
Abstract
The invention discloses the charging system of the antitheft detection of a kind of tool, framework, in charging to the rechargeable battery of electric motor car, comprises: electric supply installation, and framework is in output rechargeable electrical energy; Cap assembly, is electrically connected with electric supply installation, framework in being plugged in electric motor car separably, to receive and to transmit rechargeable electrical energy to rechargeable battery; And Anti-theft detection device, comprise: response unit, be arranged in cap assembly, and output response signal; And detecting unit, be arranged in electric supply installation, and be connected with response unit signal, framework is in detection response signal; Corresponding change when wherein response signal is separated between cap assembly with electric supply installation, makes detecting unit learn the separated of cap assembly and electric supply installation according to response signal.
Description
Technical field
The present invention is about a kind of charging system, and espespecially one is used for charging to charging vehicle, and can detect the whether stolen charging system of cap assembly.
Background technology
The invention of fuel oil type automobile improves the problem of convenience in human action and goods handling really, and along with the progress of manufacturing technology, fuel oil type automobile is produced in a large number, now fuel oil type automobile oneself through becoming one of instrument indispensable in human lives.Current world fuel oil type automobile sum about 8.5 hundred million, and the oil consumption in the whole world 57% is field of traffic (wherein the U.S. reaches 67%), expect the year two thousand twenty fuel oil type automobile and will reach 1,200,000,000, to occur clean breach between global demand of petroleum and conventional oil supply, petroleum-based energy imbalance between supply and demand highlights day by day.Estimate that the insufficiency of supply-demand of the year two thousand fifty is almost equivalent to the twice of world oil total output in 2000, oil price can rapidly go up, and causes automobile use cost more and more higher.Therefore, each state, all at positive encourage growth new-energy automobile, to restructure the use of energy, reduces the dependence to oil.
In addition, during the running of fuel oil type automobile, burns gasoline can cause air pollution, make whole biological environment cause destruction, in recent years in order to improve the destruction of vehicle to environment, each car trader endeavours to research and develop oligosaprobic automobile, to protect our environment.In various new-energy automobile, the technical background of electric automobile is relatively ripe, and electrical network is routed to all parts of the world, can obtain stable electric energy very easily, so electric motor car is an important directions of new-energy automobile development.
Electric motor car uses rechargeable battery as a stable energy source, the rechargeable electrical energy that this rechargeable battery then can utilize charging system to provide charges, electric energy required when running to provide electric motor car, the wherein charging system cap assembly that comprises charging station and be made up of cable set and charging gun, charging station framework is in the rechargeable electrical energy received input electric energy being converted to applicable rechargeable battery and use, cable set is electrically connected between charging station and charging gun, framework is sent to charging gun in the rechargeable electrical energy exported by charging station, charging gun is then plugged on the cradle of electric motor car separably for user, the rechargeable electrical energy making charging station export by this is supplied to rechargeable battery via cable set and charging gun and charges.
Day by day universal due to electric motor car, well imagine, more charging system certainly will need be set in various places, immediately charging operation can be carried out to make the rechargeable battery of electric motor car, but expensive due to charging gun and cable set, be exposed to again outside charging system, therefore when current charging system there is no any antitheft mechanism, real very easily trick is stolen and causes paying more money cost, and it is stolen to prevent, also the mode only by setting a watch on makes great efforts to reach, and thus, also needs to pay a large amount of manpowers and money cost.
Therefore, how to develop a kind of charging system improving the antitheft detection of tool of above-mentioned prior art disappearance, real is the current problem in the urgent need to address of correlative technology field person.
Summary of the invention
Main purpose of the present invention is the charging system providing the antitheft detection of a kind of tool, it by arranging the simple and reliable Anti-theft detection device of circuit in charging system, whether stolen with the charging gun and cable set that detect charging system, there is no any antitheft mechanism to solve existing charging system, cause paying a large amount of manpowers and money and become originally in response to charging gun and the disappearance such as cable set is stolen or antitheft.
For reaching above-mentioned purpose, better embodiment of the present invention is for providing the charging system of the antitheft detection of a kind of tool, and framework, in charging to the rechargeable battery of electric motor car, comprises: electric supply installation, and framework is in output rechargeable electrical energy; Cap assembly, is electrically connected with electric supply installation, framework in being plugged in electric motor car separably, to receive and to transmit rechargeable electrical energy to rechargeable battery; And Anti-theft detection device, comprise: response unit, be arranged in cap assembly, and output response signal; And detecting unit, be arranged in electric supply installation, and be connected with response unit signal, framework is in detection response signal; Corresponding change when wherein response signal is separated between cap assembly with electric supply installation, makes detecting unit learn the separated of cap assembly and electric supply installation according to response signal.
Accompanying drawing explanation
Fig. 1: it is the block schematic diagram of the charging system of the antitheft detection of tool of present pre-ferred embodiments.
Fig. 2: the particular circuit configurations schematic diagram of the first preferred embodiment of the Anti-theft detection device shown in its Fig. 1.
Fig. 3: the particular circuit configurations schematic diagram of the second preferred embodiment of the Anti-theft detection device shown in its Fig. 1.
Fig. 4: the particular circuit configurations schematic diagram of the 3rd preferred embodiment of the Anti-theft detection device shown in its Fig. 1.
Fig. 5: the particular circuit configurations schematic diagram of the 4th preferred embodiment of the Anti-theft detection device shown in its Fig. 1.
Wherein, description of reference numerals is as follows:
1: charging system;
10: Anti-theft detection device;
100: detecting unit;
101: response unit;
102,400,500: control unit;
103: impedance detection unit;
104: switching circuit;
105: protective circuit;
11: charging station;
12: cap assembly;
120: cable set;
121: charging gun;
122: electromagnetic valve switch;
401: reading unit;
402: the first wireless radio frequency modules;
403: communication interface;
404: receiver;
405: the second wireless radio frequency modules;
402a: transmitting terminal;
501: the first bluetooth modules;
502: third antenna;
503: the first filters;
Export balanced to unbalanced transformer at 504: the first;
505: the first Bluetooth control wafers;
506: the first storing memories;
507: the first clock pulse generators;
511: the second bluetooth modules;
512: the four antennas;
513: the second filters;
Export balanced to unbalanced transformer at 514: the second;
515: the second Bluetooth control wafers;
516: the second storing memories;
517: the second clock pulse generators;
R1: the first resistance;
R2: the second resistance;
R3: the three resistance;
R4: the four resistance;
R5: the five resistance;
R6: the six resistance;
R7: the seven resistance;
ZD: Zener diode;
D1: the first diode;
D2: the second diode;
Vt1: the first detection signal;
Vt2: the second detection signal;
Vt3: the three detection signal;
Vc: control signal;
Vo: driving voltage;
Vs: standby voltage;
G: earth terminal;
Q1:NPN bipolar transistor;
Q2:PNP bipolar transistor;
A: the first contact;
B: the second contact;
C: the three contact;
D: the four contact;
L1: the first antenna;
L2: the second antenna.
Embodiment
Some exemplary embodiments embodying feature & benefits of the present invention describe in detail in the explanation of back segment.Be understood that the present invention can have various changes in different modes, it neither departs from the scope of the present invention, and explanation wherein and being shown in essence when the use explained, and nand architecture is in restriction the present invention.
Refer to Fig. 1, it is the block schematic diagram of the charging system of the antitheft detection of tool of present pre-ferred embodiments.As shown in Figure 1, charging system 1 framework of the present embodiment is in charging to the rechargeable battery (not shown) in electric motor car, electric energy required when running to provide electric motor car, charging system 1 comprises Anti-theft detection device 10, electric supply installation and cap assembly 12.Electric supply installation, such as charging station 11, framework is in by received input electric energy, and the AC energy such as provided by Utilities Electric Co., converts the rechargeable electrical energy of direct current that applicable rechargeable battery uses or interchange to.Cap assembly 12 is electrically connected with charging station 11, and comprise cable set 120 and charging gun 121, wherein cable set 120 is electrically connected between charging station 11 and charging gun 121, and be made up of at least one cable, framework is sent to charging gun 121 in the rechargeable electrical energy exported by charging station 11, as for charging gun 121 frameworks in being plugged on the cradle of electric motor car separably, being provided to rechargeable battery with rechargeable electrical energy cable set 120 transmitted, and then rechargeable battery is charged.
Anti-theft detection device 10 is arranged in charging system 1, whether framework is separated in the cap assembly 12 detecting charging system 1 with between charging station 11, such as, when not being electrically connected, to judge whether cap assembly 12 stolen situation occurs, and comprise detecting unit 100 and response unit 101, wherein response unit 101 is arranged in cap assembly 12, such as be arranged in charging gun 121, response unit 101 framework is in output response signal, this response signal can be such as made up of impedance variation or be made up of wireless signal, but not as limit.Detecting unit 100 is arranged in charging station 11, and with response unit 101 in a wired or wireless manner signal be connected (as being represented by dotted lines in Fig. 1), the response signal that framework exports in detection response unit 101, correspondingly when wherein response signal can be separated between cap assembly 12 with charging station 11 to change, detecting unit 100 is made to learn the separated of cap assembly 12 and charging station 11 according to response signal, that is the situation that cap assembly 12 has deathwatch to occur.
Below may execution mode by further illustrating the various of Anti-theft detection device of the present invention.Refer to Fig. 2, and coordinate Fig. 1, the particular circuit configurations schematic diagram of wherein Fig. 2 first preferred embodiment that is the Anti-theft detection device shown in Fig. 1.As shown in Figure 2, in the present embodiment, whether Anti-theft detection device 10 detects cap assembly 12 in the mode of contact measurement and is separated with between charging station 11, judge whether cap assembly 12 stolen situation occurs, wherein response unit 101 can be but is not limited to be made up of interior the first resistance R1 had of charging gun 121, and the impedance that the first resistance R1 in fact more can be had by the electromagnetic valve switch 122 in charging gun 121 formed, when charging gun 121 be plugged in electric motor car cradle and for charging to the rechargeable battery in electric motor car time, this electromagnetic valve switch 122 can be energized and excitatory, therefore the muzzle of charging gun 121 and cradle can be pinned, get loose from cradle to prevent charging gun 121, wherein this first resistance R1 can such as 50 ohm.
Detecting unit 100 comprises control unit 102 and an impedance detection unit 103, wherein impedance detection unit 103 is electrically connected with control unit 102, and the output of impedance detection unit 103 is electrically connected with the first resistance R1 by the cable of cable set 120, impedance detection unit 103 is operated by the control of control unit 102, and the first detection signal Vt1 and the second detection signal Vt2 can be exported respectively to control unit 102, wherein, first detection signal Vt1 framework is in time being in operating mode when charging system 1 and charging gun 121, whether the impedance of reacting the first resistance R1 changes, second detection signal Vt2 then framework in time being in standby mode when charging system 1 and charging gun 121, whether the impedance of reacting the first resistance R1 changes.
Control unit 102 is electrically connected with impedance detection unit 103, framework has the control signal Vc of low and high level change to impedance detection unit 103 in output, corresponding start is carried out with control group detecting unit 103, in addition, control unit 102 more can when charging system 1 and charging gun 121 be in operating mode, whether the impedance being detected the first resistance R1 by the first detection signal Vt1 is changed, and then judge whether cap assembly 12 is separated with between charging station 11, to confirm whether cap assembly 12 stolen situation occurs, control unit 102 also can when charging system 1 and charging gun 121 be in standby mode, whether the impedance being detected the first resistance R1 by the second detection signal Vt2 is changed, and then judge whether cap assembly 12 is separated with between charging station 11, to confirm whether cap assembly 12 stolen situation occurs.
In above-described embodiment, impedance detection unit 103 comprises a switching circuit 104, one protective circuit 105, one second resistance R2, Zener diode ZD and 1 the 3rd resistance R3, wherein the control end of switching circuit 104 is electrically connected and reception control signal Vc with control unit 102, the input conduction terminals of switching circuit 104 then receives driving voltage Vo, this driving voltage Vo framework is in driving electromagnetic valve switch 122, and can be but be not limited to 12V, the output conduction terminals of switching circuit 104 is then electrically connected with one end of the first resistance R1 of this electromagnetic valve switch 122, the control signal Vc that switching circuit 104 provides according to control unit 102 is to carry out the switching of conducting or cut-off, by this when switching circuit 104 conducting, the electric energy of driving voltage Vo just can be sent to electromagnetic valve switch 122 and the first resistance R1 via switching circuit 104, come into operation to order about electromagnetic valve switch 122, in addition, switching circuit 104 is more electrically connected with earth terminal G.
In some embodiments, as shown in Figure 2, switching circuit 104 can be but is not limited to be made up of NPN bipolar transistor Q1 and PNP bipolar transistor Q2, wherein the base stage of NPN bipolar transistor Q1 is electrically connected and reception control signal Vc with control unit 102, the collector of NPN bipolar transistor Q1 is electrically connected with the base stage of PNP bipolar transistor Q2, the emitter-base bandgap grading of NPN bipolar transistor Q1 is electrically connected with earth terminal G, the emitter-base bandgap grading of PNP bipolar transistor Q2 receives driving voltage Vo, the collector of PNP bipolar transistor Q2 is electrically connected with one end of the first resistance R1, as from the foregoing, the base stage of NPN bipolar transistor Q1 is actually the control end of switching circuit 104, the emitter-base bandgap grading of PNP bipolar transistor Q2 is the input conduction terminals of switching circuit 104, the collector of PNP bipolar transistor Q2 is the output conduction terminals of switching circuit 104, and switching circuit 104 is electrically connected with earth terminal G by the emitter-base bandgap grading of NPN bipolar transistor Q1.
The input of protective circuit 105 receives standby voltage Vs, this standby voltage Vs is the voltage continuing to export, framework is in time being in standby mode when charging system 1, the electric energy that electronic component in charging system 1 is required when standby is provided, and can be but be not limited to 3.3V, the output of protective circuit 105 is then electrically connected with one end of the first resistance R1, protective circuit 105 framework is in exporting standby voltage Vs by output, and can prevent backward current from being flowed into by the output of protective circuit 105, and when such as short circuit occurs cap assembly 12, protection standby voltage Vs is not by the impact of short circuit.In this embodiment; protective circuit 105 can be made up of the first diode D1 and the 4th resistance R4; wherein the anode tap of the first diode D1 receives standby voltage Vs; the cathode terminal of the first diode D1 is electrically connected with one end of the 4th resistance R4; first diode D1 can prevent backward current from being flowed into by the output of protective circuit 105; the other end of the 4th resistance R4 is electrically connected with the first contact A; 4th resistance R4 can in time there is such as short circuit in cap assembly 12, and protection standby voltage Vs is not by the impact of short circuit.In above-described embodiment, the 4th resistance R4 can such as 1K ohm.Again in some embodiments, the 4th resistance R4 also can omit (not shown).
One end of second resistance R2 and protective circuit 105, the output conduction terminals of switching circuit 104 and one end of the first resistance R1 are electrically connected on the first contact A; the other end of the second resistance R2 is then electrically connected on the second contact B with the cathode terminal of Zener diode ZD and control unit 102; in fact second resistance R2 forms a current-limiting resistance; receive too large electric current after collapsing conducting to prevent Zener diode ZD and burn out, and can be such as 10K ohm.One end and the control unit 102 of the anode tap of Zener diode ZD and the other end of the first resistance R1, the 3rd resistance R3 are electrically connected on the 3rd contact C, the other end of the 3rd resistance R3 is electrically connected with earth terminal G, Zener diode ZD framework is in pressure limiting, and generation first detection signal Vt1, to control unit 102, the second contact B then produces the second detection signal Vt2 to control unit 102 on the 3rd contact C.
Below by the function mode of the Anti-theft detection device 10 shown in key diagram 2.Referring again to Fig. 2, when charging system 1 be in operating mode and charging gun 121 for charging to the rechargeable battery of electric motor car time, now, control unit 102 by the control signal Vc of output HIGH voltage level to the control end of switching circuit 104, with control switch circuit 104 conducting, therefore the electric energy of driving voltage Vo just can be sent to the electromagnetic valve switch 122 of charging gun 121 via switching circuit 104, make electromagnetic valve switch 122 energization excitation, the muzzle pinning charging gun 121 follows the cradle of electric motor car to prevent charging gun 121 rifle from getting loose, now, Zener diode ZD also presents collapse conducting because of driving voltage Vo, the voltage level of the first detection signal Vt1 therefore on the 3rd contact C will correspond to the dividing potential drop of driving voltage Vo through the first resistance R1 and the 3rd resistance R3, and correspond to driving voltage Vo in the second resistance R2, the pressure drop produced between Zener diode ZD and the 3rd resistance R3, so because the second resistance R2 is high impedance, relative first resistance R1 and the 3rd resistance R3 is large, therefore in fact the voltage level of the first detection signal Vt1 can be considered that only corresponding to driving voltage Vo is maintained in the first normal voltage range through the dividing potential drop of the first resistance R1 and the 3rd resistance R3, such as about 0.24V.
Once have burglar to be in operating mode at charging system 1 and charging gun 121 cut off cap assembly 12, such as cut off charging gun 121 or cable set 120, now, first resistance R1 forms open-circuit condition for impedance detection unit 103, that is first the impedance of resistance R1 become infinitely great, thus, the voltage level of the first detection signal Vt1 on the 3rd contact C will only correspond to driving voltage Vo in the second resistance R2, the pressure drop produced between Zener diode ZD and the 3rd resistance R3, and due to the second resistance R2 be high impedance, therefore the magnitude of voltage of the first detection signal Vt1 in fact such as approximates zero, it can thus be appreciated that, the first detection signal Vt1 now there is no method and is maintained in the first normal voltage range, therefore control unit 102 just can detect that the voltage level of the first detection signal Vt1 changes and judges that cap assembly 12 is separated with between charging station 11 at present, that is there is stolen situation in cap assembly 12, and then correspondence sends alarm signal.
In addition, when charging system 1 and charging gun 121 are all in standby mode, the control signal Vc of control unit 102 output LOW voltage level is to the control end of switching circuit 104, switching circuit 104 is ended, now, electric energy on first contact A will to be transmitted via protective circuit 105 by standby voltage Vs and obtained, and due to the level of standby voltage Vs less, therefore the electric energy on the first contact A now also cannot order about Zener diode ZD collapse conducting, therefore the voltage of the first contact A will by standby voltage Vs via the 4th resistance R4, dividing potential drop between first resistance R1 and the 3rd resistance R3 formed, therefore the magnitude of voltage about such as 0.14V of the first contact A, and then make the voltage on the corresponding first contact A of the voltage level of the second detection signal Vt2 on the second contact B and maintain in the second normal voltage range, such as approximate 0.14V.
Once have burglar to be in standby mode at charging system 1 and charging gun 121 cut off cap assembly 12, such as cut off charging gun 121 or cable set 120, now, first resistance R1 forms open-circuit condition for impedance detection unit 103, that is first the impedance of resistance R1 become infinitely great, thus, because Zener diode ZD does not collapse, therefore no current flows into the second resistance R2 by the first contact A, therefore the second detection signal Vt2 on the second contact B is by identical with the voltage on the first contact A, such as equal the conducting voltage that standby voltage Vs cuts the first diode D1, therefore the second detection signal Vt2 will equal such as below 3V, therefore, in fact the level of the second detection signal Vt2 changes, therefore control unit 102 just can detect that the voltage level of the second detection signal Vt2 changes and judges that cap assembly 12 is separated with between charging station 11 at present, that is there is stolen situation in cap assembly 12, and then correspondence sends alarm signal.
In some embodiments, when charging system 1 and charging gun 121 are all in standby mode, if the voltage of standby voltage Vs relatively 3.3V is large, such as more than 5V, and when can order about Zener diode ZD conducting, if burglar is in standby mode at charging system 1 and charging gun 121 and cuts off cap assembly 12, the second detection signal Vt2 then on the second contact B cannot be maintained at this second normal voltage range and change into the breakdown voltage equaling Zener diode ZD, such as 3V, therefore the voltage level of the second detection signal Vt2 in fact still changes and can detected by controlled unit 102.
As from the foregoing, Anti-theft detection device 10 shown in Fig. 2 adopts the first resistance R1 of the electromagnetic valve switch 122 in charging gun 121 to form response unit 101, to detect the corresponding impedance variation resulted from impedance detection unit 103 when whether the first resistance R1 is separated between cap assembly 12 with charging station 11 by the mode of contact measurement, judge that whether cap assembly 12 is stolen by this, therefore the first resistance R1 impedance variation resulted from impedance detection unit 103 just constitutes a kind of response signal that response unit 101 can provide, this response signal can produce corresponding change when cap assembly 12 is stolen, can according to the change of this response signal to judge whether cap assembly 12 is separated with between charging station 11 with detecting unit 100, to confirm whether cap assembly 12 stolen situation occurs.
Referring again to Fig. 2, in some embodiments, one the 5th resistance R5 and the 6th resistance R6 more can be had in switching circuit 104, wherein the 5th resistance R5 is electrically connected between the base stage of NPN bipolar transistor Q1 and control unit 102, and the 6th resistance R6 is electrically connected between the collector of NPN bipolar transistor Q1 and the base stage of PNP bipolar transistor Q2.In addition, impedance detection unit 103 more can have the second diode D2, the anode tap of this second diode D2 is electrically connected with the other end of earth terminal G and the 3rd resistance R3, one end electrical connection of the output conduction terminals of the cathode terminal switching circuit 104 of the second diode D2, one end of the second resistance R2 and this first resistance R1.
Certainly, the first above-mentioned resistance R1 is not limited to the impedance that need be had by the electromagnetic valve switch 122 in charging gun 121 as shown in Figure 2 and forms, in other embodiments, as shown in Figure 3, first resistance R1 also can change and is made up of the thermistor in charging gun 121, temperature switch or the extra finite resistive arranged, and resistance value can such as in 1K ~ 10K ohm.In addition, corresponding first resistance R1 changes by the thermistor in charging gun 121, the finite resistive of temperature switch or extra setting formed, impedance detection unit 103 shown in Fig. 3 is compared to the impedance detection unit 103 shown in Fig. 2, also can change by only comprising the 7th resistance R7, wherein one end of the 7th resistance R7 receives standby voltage Vs, this standby voltage Vs is the voltage continuing to export, and framework is in time being in standby mode when charging system 1, the electric energy that electronic component in charging system 1 is required when standby is provided, the other end of the 7th resistance R7 is then connected to the 4th contact D by the cable of cable set 120 and one end of the first resistance R1, this seven resistance R7 can be such as 10K ohm, what is more, control unit 102 shown in Fig. 3 is compared to the control unit 102 shown in Fig. 2, change to and be electrically connected with the 4th contact D, whether change in the impedance being detected the first resistance R1 by the 3rd detection signal Vt3 on the 4th contact D with framework, and then judge whether charging cap assembly 12 is separated with between charging station 11, to confirm whether cap assembly 12 has stolen situation to occur.
Known as shown in Figure 3, because the first resistance R1 impedance that not the first resistance R1 is as shown in Figure 2 had by electromagnetic valve switch 122 of the present embodiment formed, therefore its impedance detection unit 103 can without the need to having the interlock circuit for driving electromagnetic valve switch 122, therefore the internal circuit of impedance detection unit 103 in fact shown in Fig. 3 eliminates the circuit such as switching circuit 104 grade shown in Fig. 2, make electric structure more simple cheap, in addition, when cap assembly 12 is connected to charging station 11, no matter charging system 1 is in operating mode or standby mode to the 3rd detection signal Vt3 on 4th contact D, all may correspond to standby voltage Vs is maintained in the 3rd normal voltage range via the dividing potential drop result of the 7th resistance R7 and the first resistance R1, once have burglar to be in operating mode or standby mode at charging system 1 and charging gun 121 cut off cap assembly 12, such as cut off charging gun 121 or cable set 120, now, first resistance R1 forms open-circuit condition for impedance detection unit 103, that is first the impedance of resistance R1 become infinitely great, thus, the voltage level of the 3rd detection signal Vt3 on the 4th contact D will correspondingly because the first resistance R1 generation impedance variation change, and be changed to the voltage level equaling standby voltage VS, therefore in fact the 3rd detection signal Vt3 cannot be maintained in the 3rd normal voltage range, therefore control unit 102 just can detect that the voltage level of the 3rd detection signal Vt3 changes and judges that cap assembly 12 is separated with between charging station 11 at present, that is there is stolen situation in cap assembly 12, to send alarm signal.
Refer to Fig. 4, and coordinate Fig. 1, the particular circuit configurations schematic diagram of wherein Fig. 4 the 3rd preferred embodiment that is the Anti-theft detection device shown in Fig. 1.As shown in Figure 4, in the present embodiment, whether Anti-theft detection device 10 detects cap assembly 12 in the mode that the wireless type of radio frequency identification (RFID) detects and is separated with between charging station 11, judge whether cap assembly 12 has stolen situation to occur, the detecting unit 100 being wherein arranged at the Anti-theft detection device 10 in charging station 11 comprises control unit 400 and reading unit (reader) 401, reading unit 401 comprises the first wireless radio frequency modules 402 and the first antenna L1, first antenna L-1 is electrically connected with earth terminal G, first wireless radio frequency modules 402 is electrically connected with the first antenna L1 by inner transmitting terminal 402a, and the first wireless radio frequency modules 402 drives the first antenna L1 to send a radiofrequency signal via transmitting terminal 402a, control unit 400 is connected with reading unit 401 by communication interface 403, and communicated with the first wireless radio frequency modules 402 by this communication interface 403.
The response unit 101 being arranged at charging gun 121 can by a receiver 404, such as label (tag) formed, and there is the second wireless radio frequency modules 405 and one second antenna L2, wherein the second antenna L2 is electrically connected with the second wireless radio frequency modules 405 and earth terminal G, and the distance when between the second antenna L2 and the first antenna L1 in the first safe distance time, can be coupled in an electromagnetic manner between second antenna L2 and the first antenna L1, can start in time receiving electric energy as the second wireless radio frequency modules 405, and then send an information signal, and this information signal is spread out of via the second antenna L2 in the mode of wireless carrier.
Flowing mode is made below by the Anti-theft detection device 10 shown in key diagram 4.As shown in Figure 4, first, reading unit 401 can drive the transmitting terminal 402a of the first wireless radio frequency modules 402 to send the radiofrequency signal with fixed frequency via the first antenna L-1 constantly or periodically, not yet be separated between cap assembly 12 with charging station 11, and the distance between the second antenna L2 of receiver 404 and the first antenna L1 of reading unit 401 in the first safe distance time, second antenna L2 just can have electromagnetic coupling effect because of the radiofrequency signal of the first antenna L1, and then produce induced current to the second wireless radio frequency modules 405, therefore the second wireless radio frequency modules 405 just obtains electric energy and is activated, now the second wireless radio frequency modules 405 output packet can contain self coding (UID, the information signal of information such as ubiquitousID), this information signal sends in carrier signal mode via the second antenna L2, now, first wireless radio frequency modules 402 of reading unit 401 will receive the carrier signal comprising information signal transmitted from receiver 404 by the first antenna L1, and demodulation code is carried out to the carrier signal received, more notify via communication interface 403 carrier signal that control unit 400 receives receiver 404 at present and transmits, control unit 400 just can judge that current cap assembly 12 there is no generation and situation about being separated between charging station 11 by this.
Once there be burglar to cut off cap assembly 12, such as cut off charging gun 121 or cable set 120, and cap assembly 12 is taken away, the time in of making distance between the second antenna L2 and the first antenna L1 more than the first safe distance, just electromagnetic coupling effect cannot be there is with the first antenna L1 and produce induced current in the second antenna L2, therefore the second wireless radio frequency modules 405 cannot receive enough electric energy and operate, thus, the carrier signal mode of the information signals such as self coding cannot be sent to the first wireless radio frequency modules 402 by the second wireless radio frequency modules 405, now, return from receiver 404 the carrier signal of coming because the first wireless radio frequency modules 402 cannot receive, therefore reading unit 401 will notify that via communication interface 403 control unit 400 returns without receiving receiver 404 carrier signal come at present, control unit 400 just can differentiate that current cap assembly 12 is separated with between charging station 11 by this, that is there is stolen situation in cap assembly 12, and then produce corresponding alarm signal.
As from the foregoing, embodiment shown in Fig. 4 is the response signal that the information signal sent by the second wireless radio frequency modules 405 is carried out the response unit 101 shown in pie graph 2 and exports, therefore for the first wireless radio frequency modules 402, because be separated between cap assembly 12 with charging station 11 and exceed the first safe distance and produce corresponding change, such as, nothing can be become from having during this response signal.
Refer to Fig. 5, and coordinate Fig. 1, the particular circuit configurations schematic diagram of wherein Fig. 5 the 4th preferred embodiment that is the Anti-theft detection device shown in Fig. 1.As shown in Figure 5, in the present embodiment, whether the mode that the wireless type that Anti-theft detection device 10 communicates with bluetooth (bluetooth) detects is separated with between charging station 11 to detect cap assembly 12, judge whether cap assembly 12 has stolen situation to occur, the detecting unit 100 being wherein arranged at the Anti-theft detection device 10 in charging station 11 comprises control unit 500 and the first bluetooth module 501, first bluetooth module 501 can be set as main end (MASTER), and comprise third antenna 502, first filter 503, first exports balanced to unbalanced transformer (Balun) 504, first Bluetooth control wafer 505, first storing memory 506 and the first clock pulse generator 507.First clock pulse generator 507 is electrically connected with the first Bluetooth control wafer 505, in order to produce clock signal to the first Bluetooth control wafer 505, makes the first Bluetooth control wafer 505 according to the corresponding start of clock pulse of this clock signal.First storing memory 506 is electrically connected with the first Bluetooth control wafer 505, and framework, in providing storage area, makes the first Bluetooth control wafer 505 can by the data storing needed in the first storing memory 506 or read data stored in the first storing memory 506.First Bluetooth control wafer 505 framework is in transmission or receive one first wireless signal.First exports balanced to unbalanced transformer 504 is electrically connected with the first Bluetooth control wafer 505, framework in change and adjust the first Bluetooth control wafer 505 the wireless signal that exports or receive, the signal specification making signal transmission pattern and damping (impedance) that Bluetooth communication can be met to reach an agreement on, and can be but be not limited to be used in the match circuit of 2.4GHz.First filter 503 is connected between the first output balanced to unbalanced transformer 504 and third antenna 502, the wireless signal that first Bluetooth control wafer 505 exports, in filtering, can be sent in outside or by other wireless signal of external reception as third antenna 502 by framework.Be electrically connected with the first Bluetooth control wafer 505 as control unit 500, it can be linked up with the first Bluetooth control wafer 505.
The response unit 101 being arranged at charging gun 121 can be made up of the second bluetooth module 511, and the second bluetooth module 511 can be set as time main point (SLAVE), and comprise the 4th antenna 512, second filter 513, second exports balanced to unbalanced transformer (Balun) 514, second Bluetooth control wafer 515, second storing memory 516 and the second clock pulse generator 517, right second bluetooth module 511 formed, and the second bluetooth module 511 comprises the 4th antenna 512, second filter 513, second exports balanced to unbalanced transformer (Balun) 514, second Bluetooth control wafer 515, the annexation of the second storing memory 516 and the second clock pulse generator 517 and make flowing mode all similar in appearance to third antenna 502, first filter 503, first exports balanced to unbalanced transformer 504, first Bluetooth control wafer 505, first storing memory 506 and the first clock pulse generator 507, repeat no more in this.
In above-described embodiment, the first bluetooth module 501 and the second bluetooth module 511 utilize ISM2.4GHz frequency range, and read information to each other with FHHS frequency-hopping mode by less radio-frequency, but and endlessly this is limited.
Flowing mode is made below by the Anti-theft detection device shown in key diagram 5.As shown in Figure 5, after the charging station 11 of charging system 1 starts, for the first bluetooth module 501 mainly held just can send the first wireless signal, and when being not yet separated between cap assembly 12 with charging station 11, and the first bluetooth module 501 and the second bluetooth module 511 and distance in one second safe distance time, for the second bluetooth module 511 of secondary main point just can receive the first wireless signal exported by the first bluetooth module 501, make the second bluetooth module 511 also corresponding output the second wireless signal to the first bluetooth module 501, therefore just can be connected to each other and form so-called microgrid (PICONET) between the first bluetooth module 501 and the second bluetooth module 511.
Once there be burglar to cut off cap assembly 12, such as cut off charging gun 121 or cable set 120, and cap assembly 12 is taken away, the time in of making the distance between the first bluetooth module 501 and the second bluetooth module 511 exceed the second safe distance, that is when exceeding the distance of above-mentioned microgrid, this microgrid just can form broken string, in other words, namely the first bluetooth module 501 cannot receive the second bluetooth module 51 the second wireless signal of exporting, thus, first Bluetooth control wafer 505 just can notify that the situation that cannot be connected with the second bluetooth module 511 occurs control unit 500 at present, control unit 500 just can differentiate that current cap assembly 12 is separated with between charging station 11 by this, that is there is stolen situation in cap assembly 12, and then produce corresponding alarm signal.
As from the foregoing, embodiment shown in Fig. 5 is that the second wireless signal sent by the second bluetooth module 511 carrys out the pie graph 2 shownschematically response signal that exports of response unit 101, therefore for the first bluetooth module 501, because be separated between cap assembly 12 with charging station 11 and exceed the second safe distance and produce corresponding change, such as, nothing can be become from having during this response signal.
In sum, the present invention is the charging system of the antitheft detection of a kind of tool, it by arranging the simple and reliable Anti-theft detection device of circuit in charging system, whether be separated with between charging station to detect the cap assembly of charging system by wired or wireless mode, judge whether disconnect and have the situation of deathwatch to occur between cap assembly and charging station by this, therefore can when without the need to paying a large amount of manpowers and money cost, namely whether fast detecting has to cap assembly stolen situation occurs, and then correspondence sends alarm signal, reduce cap assembly by this to occur by the chance of deathwatch.
The present invention must to be appointed for technical staff by ability and executes craftsman and to think and for modifying as all, so neither de-if the attached right institute that applies for a patent is for Protector.
Claims (21)
1. a charging system for the antitheft detection of tool, framework, in charging to a rechargeable battery of an electric motor car, comprises:
One electric supply installation, framework is in output one rechargeable electrical energy;
One cap assembly, is electrically connected with this electric supply installation, framework in being plugged in this electric motor car separably, to receive and to transmit this rechargeable electrical energy to this rechargeable battery; And
One Anti-theft detection device, comprises:
One response unit, is arranged in this cap assembly, and exports a response signal; And
One detecting unit, is arranged in this electric supply installation, and is connected with this response unit signal, and framework is in this response signal of detection;
Wherein this cap assembly more comprises a cable set and a charging gun, and this cable set is electrically connected between this electric supply installation and this charging gun, and this response unit is arranged in this charging gun;
This response unit comprises one first resistance, and the impedance variation of this first resistance forms this response signal;
This detecting unit comprises:
One impedance detection unit, be electrically connected with this first resistance, and export one first detection signal and one second detection signal, wherein this first detection signal framework is in time being in operating mode when this charging system, whether the impedance of reacting this first resistance changes, this the second detection signal framework is in time being in standby mode when this charging system, and whether the impedance of reacting this first resistance changes; And
One control unit, be electrically connected with this impedance detection unit, framework controls signal to this impedance detection unit in output one, corresponding start is carried out to control this impedance detection unit, and differentiate whether this cap assembly is separated with between this electric supply installation when this charging system is in operating mode according to the change of this first detection signal, and differentiate whether this cap assembly is separated with between this electric supply installation when this charging system is in standby mode according to the change of this second detection signal.
2. the charging system of the antitheft detection of tool as claimed in claim 1, wherein this first resistance is made up of the impedance of the electromagnetic valve switch in this charging gun.
3. the charging system of the antitheft detection of tool as claimed in claim 2, wherein this impedance detection unit comprises a switching circuit, one control end of this switching circuit is electrically connected with this control unit and receives this control signal, one input conduction terminals of this switching circuit receives a driving voltage, one of this switching circuit exports conduction terminals and is electrically connected with one end of this first resistance of this electromagnetic valve switch, this switching circuit carries out the switching of conducting or cut-off according to this control signal, and when conducting, the electric energy of this driving voltage is sent to this electromagnetic valve switch, to drive this electromagnetic valve switch start.
4. the charging system of the antitheft detection of tool as claimed in claim 3, wherein this impedance detection unit more comprises:
One protective circuit, is electrically connected with one end of this first resistance, and framework in receiving and transmitting a standby voltage, and prevents backward current, and avoids this standby voltage influenced when this cap assembly short circuit;
One second resistance, one end of this second resistance and this protective circuit, this output conduction terminals of this switching circuit and one end of this first resistance are connected to one first contact;
Zener diode, the other end of the cathode terminal of this Zener diode and this second resistance, this control unit are connected to one second contact, and wherein this second contact produces this second detection signal; And
One the 3rd resistance, one end of 3rd resistance and this control unit, the anode tap of this Zener diode and the other end of this first resistance are electrically connected on one the 3rd contact, the other end of the 3rd resistance is connected with an earth terminal, and wherein the 3rd contact produces this first detection signal.
5. the charging system of the antitheft detection of tool as claimed in claim 4, wherein this protective circuit comprises:
One first diode, the anode tap of this first diode receives this standby voltage.
6. the charging system of the antitheft detection of tool as claimed in claim 5, wherein this protective circuit comprises:
One the 4th resistance, one end of the 4th resistance is electrically connected with the cathode terminal of this first diode, and the other end of the 4th resistance is electrically connected with this first contact.
7. the charging system of the antitheft detection of tool as claimed in claim 3, wherein this switching circuit comprises:
One NPN bipolar transistor, the base stage of this NPN bipolar transistor is electrically connected with this control unit and receives this control signal, and the emitter-base bandgap grading of this NPN bipolar transistor is electrically connected with an earth terminal; And
One PNP bipolar transistor, the base stage of this PNP bipolar transistor is electrically connected with the collector of this NPN bipolar transistor, the emitter-base bandgap grading of this PNP bipolar transistor receives this driving voltage, and the collector of this PNP bipolar transistor is electrically connected with one end of this first resistance of this electromagnetic valve switch;
Wherein the base stage of this NPN bipolar transistor is this control end, and the emitter-base bandgap grading of this PNP bipolar transistor is this input conduction terminals, and the collector of this PNP bipolar transistor is this output conduction terminals.
8. the charging system of the antitheft detection of tool as claimed in claim 7, wherein this switching circuit more comprises:
One the 5th resistance, between the base stage being electrically connected on this control unit and this NPN bipolar transistor; And
One the 6th resistance, is connected between the collector of this NPN bipolar transistor and the base stage of this PNP bipolar transistor.
9. the charging system of the antitheft detection of tool as claimed in claim 3, wherein this impedance detection unit has more one second diode, the anode tap of this second diode is electrically connected with an earth terminal, and the cathode terminal of this second diode is electrically connected with one end of this output conduction terminals and this first resistance.
10. a charging system for the antitheft detection of tool, framework, in charging to a rechargeable battery of an electric motor car, comprises:
One electric supply installation, framework is in output one rechargeable electrical energy;
One cap assembly, is electrically connected with this electric supply installation, framework in being plugged in this electric motor car separably, to receive and to transmit this rechargeable electrical energy to this rechargeable battery; And
One Anti-theft detection device, comprises:
One response unit, is arranged in this cap assembly, and exports a response signal; And
One detecting unit, is arranged in this electric supply installation, and is connected with this response unit signal, and framework is in this response signal of detection;
Wherein this cap assembly more comprises a cable set and a charging gun, and this cable set is electrically connected between this electric supply installation and this charging gun, and this response unit is arranged in this charging gun;
This response unit comprises one first resistance, and the impedance variation of this first resistance forms this response signal;
This detecting unit comprises:
One impedance detection unit, is electrically connected with this first resistance, and exports one the 3rd detection signal, and wherein the 3rd detection signal framework is in time being in operating mode or standby mode when this charging system, and whether the impedance of reacting this first resistance changes; And
One control unit, is electrically connected with this impedance detection unit, in the change according to the 3rd detection signal, framework judges whether this cap assembly is separated with between this electric supply installation when this charging system is in operating mode or standby mode.
The charging system of the antitheft detection of 11. tool as claimed in claim 10, wherein this first resistance is made up of the thermistor in this charging gun, a temperature switch or the extra finite resistive arranged.
The charging system of the antitheft detection of 12. tool as claimed in claim 10, wherein this impedance detection unit comprises one the 7th resistance, one end of 7th resistance receives a standby voltage, the other end of the 7th resistance and one end of this first resistance and this control unit are connected to one the 4th contact, and wherein the 4th contact produces the 3rd detection signal.
The charging system of 13. 1 kinds of antitheft detections of tool, framework, in charging to a rechargeable battery of an electric motor car, comprises:
One electric supply installation, framework is in output one rechargeable electrical energy;
One cap assembly, is electrically connected with this electric supply installation, framework in being plugged in this electric motor car separably, to receive and to transmit this rechargeable electrical energy to this rechargeable battery; And
One Anti-theft detection device, comprises:
One response unit, is arranged in this cap assembly, and exports a response signal; And
One detecting unit, be arranged in this electric supply installation, and be connected with this response unit signal, framework is in this response signal of detection, this detecting unit comprises a reading unit, and this reading unit comprises one first wireless radio frequency modules and one first antenna, and this first antenna is electrically connected with an earth terminal, this first wireless radio frequency modules is electrically connected with this first antenna by a transmitting terminal, and framework sends a radiofrequency signal in driving this first antenna via this transmitting terminal;
Correspondingly when wherein this response signal is separated between this cap assembly with this electric supply installation to change, make this detecting unit learn the separated of this cap assembly and this electric supply installation according to this response signal.
The charging system of the antitheft detection of 14. tool as claimed in claim 13, wherein this detecting unit comprises a control unit, is connected with this reading unit by a communication interface, and is communicated with this first wireless radio frequency modules by this communication interface.
The charging system of the antitheft detection of 15. tool as claimed in claim 14, wherein this response unit comprises a receiver, and this receiver comprises one second wireless radio frequency modules and one second antenna, this second antenna is electrically connected with this second wireless radio frequency modules and this earth terminal, when distance wherein when between this second antenna and this first antenna is in one first safe distance, this second antenna and this first antenna electromagnetic coupled, order about this second wireless radio frequency modules start and export the information signal forming this response signal, to be sent to this reading unit via this second antenna, when distance by this when between this second antenna and this first antenna exceedes this first safe distance and makes this reading unit cannot receive this information signal, this reading unit notifies this control unit, this control unit is made to judge to be separated between this cap assembly with this electric supply installation.
The charging system of 16. 1 kinds of antitheft detections of tool, framework, in charging to a rechargeable battery of an electric motor car, comprises:
One electric supply installation, framework is in output one rechargeable electrical energy;
One cap assembly, is electrically connected with this electric supply installation, framework in being plugged in this electric motor car separably, to receive and to transmit this rechargeable electrical energy to this rechargeable battery; And
One Anti-theft detection device, comprises:
One response unit, is arranged in this cap assembly, and exports a response signal; And
One detecting unit, is arranged in this electric supply installation, and is connected with this response unit signal, and framework is in this response signal of detection, and this detecting unit comprises:
One first bluetooth module, is set as main end, and sends one first wireless signal; And
One control unit, is electrically connected with this first bluetooth module, and links up with this first bluetooth module;
Wherein this response unit comprises one second bluetooth module, this second bluetooth module is set as time main point, distance between this second bluetooth module and this first bluetooth module is in one second safe distance, this second bluetooth module is because of should the first wireless signal and return and form one second wireless signal of this response signal to this first bluetooth module, when distance by this when between this first bluetooth module and this second bluetooth module exceedes this second safe distance and makes this first bluetooth module cannot receive this second wireless signal, this first bluetooth module notifies this control unit, this control unit is made to judge to be separated between this cap assembly with this electric supply installation.
The charging system of the antitheft detection of 17. tool as claimed in claim 16, wherein this first bluetooth module comprises a clock pulse generator, and framework is in generation one clock signal.
The charging system of the antitheft detection of 18. tool as claimed in claim 17, wherein this first bluetooth module comprises a Bluetooth control wafer, be electrically connected with this clock pulse generator and this control unit, framework is respective action in the clock pulse according to this clock signal, to export this first wireless signal, and link up with this control unit.
The charging system of the antitheft detection of 19. tool as claimed in claim 18, wherein this first bluetooth module comprises a storing memory, is connected with this Bluetooth control wafer electric, and framework is in supplying this Bluetooth control chip storage or reading data.
The charging system of the antitheft detection of 20. tool as claimed in claim 19, wherein this first bluetooth module comprises:
One exports balanced to unbalanced transformer, is connected with this Bluetooth control wafer electric;
One filter, be electrically connected with this output balanced to unbalanced transformer, framework is in filtering; And
One antenna, is electrically connected with this filter.
The charging system of the antitheft detection of 21. tool as claimed in claim 16, wherein this first bluetooth module and this second bluetooth module utilize ISM2.4GHz frequency range, and read information to each other with FHHS frequency-hopping mode by less radio-frequency.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210295870.7A CN103633670B (en) | 2012-08-20 | 2012-08-20 | The charging system of the antitheft detection of tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210295870.7A CN103633670B (en) | 2012-08-20 | 2012-08-20 | The charging system of the antitheft detection of tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103633670A CN103633670A (en) | 2014-03-12 |
| CN103633670B true CN103633670B (en) | 2015-11-25 |
Family
ID=50214416
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210295870.7A Active CN103633670B (en) | 2012-08-20 | 2012-08-20 | The charging system of the antitheft detection of tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103633670B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105553031B (en) * | 2016-02-02 | 2018-05-15 | 易事特集团股份有限公司 | The disconnection detection device of the circuit for charging machine of electric automobile, charging pile and charging gun connecting line |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2289350Y (en) * | 1996-05-25 | 1998-08-26 | 王剑锋 | Theft-proof alarm positioning and range finding dual-purpose device for communication cable |
| KR101021618B1 (en) * | 2009-12-07 | 2011-03-17 | 주식회사 코디에스 | Electric vehicle charging station |
| CN102216885A (en) * | 2008-11-19 | 2011-10-12 | 索尼爱立信移动通讯有限公司 | Piezoresistive force sensor integrated in a display |
| CN102452376A (en) * | 2010-10-19 | 2012-05-16 | 昆达电脑科技(昆山)有限公司 | Vehicle anti-theft system and method |
| CN202260491U (en) * | 2011-06-17 | 2012-05-30 | 北京基业达电气有限公司 | Charge post for electromobile |
-
2012
- 2012-08-20 CN CN201210295870.7A patent/CN103633670B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2289350Y (en) * | 1996-05-25 | 1998-08-26 | 王剑锋 | Theft-proof alarm positioning and range finding dual-purpose device for communication cable |
| CN102216885A (en) * | 2008-11-19 | 2011-10-12 | 索尼爱立信移动通讯有限公司 | Piezoresistive force sensor integrated in a display |
| KR101021618B1 (en) * | 2009-12-07 | 2011-03-17 | 주식회사 코디에스 | Electric vehicle charging station |
| CN102452376A (en) * | 2010-10-19 | 2012-05-16 | 昆达电脑科技(昆山)有限公司 | Vehicle anti-theft system and method |
| CN202260491U (en) * | 2011-06-17 | 2012-05-30 | 北京基业达电气有限公司 | Charge post for electromobile |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103633670A (en) | 2014-03-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2983238A1 (en) | Management device, communication device, management method, and management system | |
| JP6018188B2 (en) | Accumulator battery system with simple management means | |
| CN102637915B (en) | Battery, battery pack, battery charger and batter-charghing system | |
| TWI467884B (en) | Anti-theft charaging system | |
| CN201477695U (en) | GSM wireless warning device used for electrical power unit | |
| US20120300860A1 (en) | Transmission device, reception device, and communication system | |
| CN102121809B (en) | Electronic detonator explosion network control device and control flow | |
| ITRM990454A1 (en) | RESPONDING DEVICE. | |
| WO2011049900A1 (en) | Fault detection using phase comparison | |
| US9581977B2 (en) | Appliance management apparatus and appliance management method | |
| CN101969578A (en) | Fault detection system and method as well as television | |
| CN104701955A (en) | Wireless charging device | |
| CN103208845A (en) | Intelligent charging management terminal and implementation method for same | |
| CN103633670B (en) | The charging system of the antitheft detection of tool | |
| CN204694752U (en) | A kind of RFID label tag identification anti-theft electricity meter box based on radio-frequency (RF) driver circuit | |
| CN103914966A (en) | Centralized meter reading system, prepayment electricity-selling meter-reading system, electricity-selling system and split-type prepayment electricity meter | |
| CN205178600U (en) | Normalized wireless module of charging | |
| CN204029090U (en) | Overground cable anti-theft prewarning apparatus | |
| CN210038467U (en) | Vehicle-mounted intelligent home monitoring equipment | |
| CN101957926B (en) | Radio-frequency card reading and writing circuit controlled and formed by MCU supporting nanoWatt technology | |
| CN208739106U (en) | A kind of personnel positioning chest card | |
| CN202748850U (en) | Vehicle unit, read-write device and system for ambiguity path identification system | |
| CN106292612A (en) | A kind of ladle baking facility on-line fault diagnosis system | |
| CN102354451B (en) | Portable vehicle detector | |
| CN102592382A (en) | Transformer anti-theft alarm device and control method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |