CN201378797Y - Monitoring device for voltage input and current output - Google Patents
Monitoring device for voltage input and current output Download PDFInfo
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- CN201378797Y CN201378797Y CN200920106726U CN200920106726U CN201378797Y CN 201378797 Y CN201378797 Y CN 201378797Y CN 200920106726 U CN200920106726 U CN 200920106726U CN 200920106726 U CN200920106726 U CN 200920106726U CN 201378797 Y CN201378797 Y CN 201378797Y
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Abstract
The utility model discloses a monitoring device for voltage input and current output, comprising a shell and a circuit board installed in the shell, wherein, the upper panel of the shell is provided with a voltage interface (J3), a current interface (J2) and an alarm interface (J6), a right panel of the shell is provided with a power interface (J1), and a front panel of the shell is provided with an LCD display screen and a keyboard; and the circuit board comprises a CPU, an analog-digital conversion module, a digital-analog conversion module, an alarm output module, a keyboard and an alarm output module. The monitoring device is characterized in that in the CPU, a received digital voltage signal Vin is differentially demodulated to obtain an operating voltage Vout of 12-bit binary value; on one hand, the operating voltage Vout is used as a current conversion input voltage; and on the other hand, the operating voltage Vout is compared with a voltage threshold value Pin to obtain an alarm voltage to play a role of early warning and protection for the damage by using terminal overcurrent.
Description
Technical field
The utility model relates to the device to using the end product applied current to protect.More particularly say, be meant a kind of can to the input voltage V
VoltageConvert electric current I to
Electric currentOutput, and electric current I to not satisfying condition and exporting
Electric currentThe supervising device of reporting to the police.
Background technology
For using end product, use a kind of supply unit of stable performance can protect its useful life fully.Using terminal can be portable equipment (as mobile phone, PDAS, GPRS, game machine), telecommunications/network equipment (as router, server, VOIP system), consumer electronics, medical system, navigation system etc.These industrial equipments are standard with 0～5V voltage mostly, and a large amount of 4～20mA current signals is contained in its circuit inside.These tiny signals in use very easily are subjected to the influence of external environment (as electromagnetic field, temperature etc.), and cause the damage or the lower signal to noise ratio of output signal of internal components, give and use the application of end product to bring huge hidden danger.Therefore, a kind of stable, reliable, highly sensitive, easy-operating electric current and voltage supervising device meaning concerning industrial production and application is huge.
At present, similar voltage on the market changes the following three kinds of methods of the general employing of electric current product: (1) replaces voltage signal to handle with the electric current signal processing, compare with voltage signal, MOS transistor is more suitable for handling current signal, because common source in the structure for amplifying and common gate output signal are current signal.(2) according to the principle design equivalent current transmitter structure of operational amplifier and current transmission device (CCII), by the replacement of operational amplifier and equivalent current transmitter structure thereof and in conjunction with the adjoint network theorem, can with the voltage-type circuit conversion current mode circuit of voltage-operated signal and current practice signal.(3) adopt standard capacitor, operational amplifier, feedback resistance, battery and charging circuit to come design voltage and the electric current circuit of commentaries on classics mutually by the selection and the calculating of concrete device.
Summary of the invention
Use terminal to be unlikely to surpass the use terminal damage that the scope of application causes in order to protect because of electric current; the utility model provides a kind of supervising device to voltage input and current output, and this supervising device adopts the digital voltage signal V to receiving in central processing unit
InCarry out the operating voltage V of one 12 bit value of differential ference spiral acquisition
OutThis operating voltage V
OutOn the one hand as input voltage of current conversion, on the other hand with operating voltage V
OutWith voltage threshold P
InCompare and obtain alarm voltage, thereby the effect of early warning and protection is played in realization to the damage of using the terminal overcurrent to cause.
A kind of supervising device of the present utility model to voltage input and current output, this supervising device includes a housing, and is installed in the circuit board in the housing; Be provided with voltage interface (J3), current interface (J2) and remote alarm interface (J6) on the top panel of housing, the right panel of housing is provided with power interface (J1), and the front panel of housing is provided with LCD display and keyboard;
Power interface (J1) is used for being connected with the direct current of 220V;
Voltage interface (J3) is used for and can exports 0～5V analog voltage signal V
VoltageProduct;
Current interface (J2) is used for being connected with using end product;
Remote alarm interface (J6) be used to provide audible alarm;
Circuit board includes:
One central processing unit, range S and ratio K and the digital voltage signal V of this central processing unit to setting among the command information INF that receives
InCarry out difference processing and obtain the operating voltage V of 12 bit values
OutThis operating voltage V
OutExport the demonstration of the enterprising line number font of LCD MODULE formula on the one hand to; This operating voltage V on the other hand
OutBe output to alarm output module; In alarm output module, this operating voltage V
OutWith voltage threshold P
InCompare, work as V
Out〉=P
InThe time, alarm output module produces alarm signal and carries out alarm; Work as V
Out＜P
InThe time, with the operating voltage V of 12 bit values
OutExport to D/A converter module;
One analog-to-digital conversion module, this analog-to-digital conversion module are used for the 0～5V analog signal V with the outside input
VoltageConvert digital voltage signal V to
InOffering central processing unit handles;
The 12 bit value operating voltage V that one D/A converter module, this D/A converter module will receive
OutCarry out exporting after the digital-to-analogue conversion current signal I of 4～20mA
Electric current
One alarm output module, this alarm output module is used for the output of warning message;
One keyboard issues command information INF by this keyboard to central processing unit, and this order information INF includes range S, ratio K and voltage threshold P
In
One LCD MODULE, this LCD MODULE are used to carry out the information that digital form shows each input, output.
The advantage of a kind of supervising device to voltage input and current output of the present utility model is:
(1) 0～5V analog signal V that the outside is imported
VoltageCarry out providing digital voltage signal V for central processing unit after the analog-to-digital conversion
In
(2) the digital voltage signal V of difference algorithm to receiving of application C language compilation in central processing unit
InHandle, improved precision the input voltage monitoring.
(3) (command information INF includes range S, ratio K and voltage threshold P to issue command information INF by keyboard operation
In), this command information INF can change voluntarily, set according to the actual demand of using terminal, has improved the operating flexibility of the utility model supervising device.
(4) 0～5V analog signal V
VoltageInput, and 4～20mA current signal I
Electric currentOutput, be common analog signal in the commercial Application now, solved stability and the required precision of using terminal that electric current is needed, thereby protected the use terminal effectively.
Description of drawings
Fig. 1 is a structural representation of using the utility model voltage monitoring equipment.
Figure 1A is the external structure schematic diagram of the utility model voltage monitoring equipment.
Fig. 2 is the structured flowchart of the utility model voltage monitoring equipment.
Fig. 3 A is the circuit theory diagrams of the central processing unit in the utility model voltage monitoring equipment.
Fig. 3 B is the circuit theory diagrams of the 220V power module in the utility model voltage monitoring equipment.
Fig. 3 C is the keyboard interface in the utility model voltage monitoring equipment.
Fig. 3 D is the liquid crystal interface in the utility model voltage monitoring equipment.
Fig. 3 E is the circuit theory diagrams of the analog-to-digital conversion module in the utility model voltage monitoring equipment.
Fig. 3 F is the circuit theory diagrams of the D/A converter module in the utility model voltage monitoring equipment.
Fig. 3 G is the circuit theory diagrams of the alarm output module in the utility model voltage monitoring equipment.
Embodiment
Below in conjunction with accompanying drawing the utility model is described in further detail.
Referring to shown in Figure 1, the supervising device of voltage input and current output of the present utility model is mounted in and uses terminal and can export 0～5V analog signal V
VoltageEquipment between.This supervising device can be protected and use terminal to be unlikely to cause damage because of electric current surpasses the scope of application.
Shown in Figure 1A, the supervising device of voltage input and current output of the present utility model includes a housing, and is installed in the circuit board in the housing.On the top panel of housing, be provided with voltage interface J3, current interface J2 and remote alarm interface J6, the right panel of housing is provided with power interface J1, the front panel of housing be provided with LCD display and keyboard (0-9 numeral arranged on this keyboard, and commonly used as determine, key such as cancellation).LCD display is used to show that (command information INF includes range S, ratio K and voltage threshold P to the command information INF that issues by keyboard
In), the easy operating person to the actual demand of using end product change voluntarily, visual when setting.Power interface J1 is used for being connected with the direct current of 220V.Voltage interface J3 is used for and can exports 0～5V analog voltage signal V
VoltageProduct.Current interface J2 is used for being connected with using end product.Remote alarm interface J6 is used for and is connected as loudspeaker, and audible alarm is provided.
Referring to shown in Figure 2, the board structure of circuit figure of a kind of supervising device to voltage input and current output of the present utility model includes on this circuit board:
One central processing unit, range S and ratio K and the digital voltage signal V of this central processing unit to setting among the command information INF that receives
InCarry out difference processing and obtain the operating voltage V of 12 bit values
OutThis operating voltage V
OutExport the demonstration of the enterprising line number font of LCD MODULE (LCD) formula on the one hand to; This operating voltage V on the other hand
OutBe output to alarm output module; In alarm output module, this operating voltage V
OutWith voltage threshold P
InCompare, work as V
Out〉=P
InThe time, alarm output module produces alarm signal and carries out alarm; Work as V
Out＜P
InThe time, with the operating voltage V of 12 bit values
OutExport to D/A converter module;
One analog-to-digital conversion module, this analog-to-digital conversion module are used for the 0～5V analog signal V with the outside input
VoltageConvert digital voltage signal V to
InOffering central processing unit handles;
The 12 bit value operating voltage V that one D/A converter module, this D/A converter module will receive
OutCarry out exporting after the digital-to-analogue conversion current signal I of 4～20mA
Electric current
One alarm output module, this alarm output module is used for the output of warning message;
One keyboard issues command information INF by this keyboard to central processing unit, and this order information INF includes range S, ratio K and voltage threshold P
In
One LCD MODULE, this LCD MODULE are used to carry out the information that digital form shows each input, output.
The supervising device of a kind of voltage input and current output of the present utility model, its central processing unit is chosen the ATmega128 chip, modulus conversion chip in the analog-to-digital conversion module is chosen the MAX187 chip, analog-digital chip in the D/A converter module is chosen the MAX5712 chip, and the voltage in the D/A converter module changes the electric current chip and chooses the ISOEM-U1-P1-O1 chip.The circuit of this supervising device under each chip portfolio of choosing connects:
Shown in Fig. 3 A, Fig. 3 B, Fig. 3 C, 8 terminals of 10 ends of central processing unit U1～17 ends join with 1 end～8 ends of the interface J4 of keyboard respectively, realize that keyboard is connected on the central processing unit U1; Keyboard is connected with central processing unit, has realized issuing command information INF by keyboard operation to central processing unit.In the utility model, described command information INF includes the voltage threshold P when reporting to the police at least
In, by keyboard operation the range S (0～9999) of input voltage is set, under alarm condition as analog-to-digital conversion module input voltage V
InBe lower than voltage threshold P
InIn time, sounds all clear (resetting), by keyboard output current I be set by operation keyboard
Electric currentRatio K (0＜K≤9.9).In the utility model, the voltage of 220V enters to exchange through power interface J1 to be changeed among the direct current chip U5, changes direct current chip U5 through this interchange and converts 5V voltage to as the supervising device use of VCC for whole voltage input and current output of the present utility model.
Shown in Fig. 3 D, 8 terminals of 25 ends of central processing unit U1～32 ends join with 7 ends～14 ends of the interface J5 of LCD MODULE respectively, 36 ends of central processing unit U1,37 ends, 38 ends respectively with 4 ends of LCD interface J5,5 ends, 6 ends join, the 2 termination 5V power supplys of the interface J5 of LCD MODULE, 3 ends are connected on 2 ends of adjustable resistance R27, the 1 termination 5V power supply of adjustable resistance R27, the 3 end ground connection of adjustable resistance R27,1 end of the interface J5 of LCD MODULE is connected on 3 ends of adjustable resistance R27, the 16 end ground connection of the interface J5 of LCD MODULE, 15 ends of the interface J5 of LCD MODULE connect the 5V power supply after resistance R 32; LCD MODULE is connected with central processing unit, has realized carrying out the information that digital form shows each input, output by LCD MODULE.
Shown in Fig. 3 E, in analog-to-digital conversion module, analog-to-digital conversion module receives the 0～5V voltage V by the outside input
Voltage, this voltage V
VoltageAt first behind a filter circuit filtering ripple, be connected on 2 ends of modulus conversion chip U2 through a resistance R 3, filter circuit is made up of diode D 1 and capacitor C 5 again, and diode D1 and capacitor C 5 are connected in parallel on voltage V
VoltageAnd digitally; 8 ends of modulus conversion chip U2,7 ends, 6 ends join with 47 ends, 49 ends, 48 ends of central processing unit U1 respectively, the 5 end ground connection of modulus conversion chip U2, the 1 termination 5V power supply of modulus conversion chip U2, the 3 termination 5V power supplys of modulus conversion chip U2, and 3 ends and digitally between be connected to another filter circuit, this filter circuit is made of capacitor C 6 and capacitor C 7, this capacitor C 6 and capacitor C 7 be connected in parallel on 3 ends and digitally between, 4 ends are through capacitor C 8 ground connection.
Shown in Fig. 3 F, in the utility model, D/A converter module includes analog-digital chip U3, voltage changes electric current chip U4 and 5V changes 24V power supply chip U6;
5V changes the 1 termination 5V voltage of 24V power supply chip U6,2 end ground connection, and 3 ends output 24V voltage, and join 4 end ground connection with 4 ends that voltage changes electric current chip U4.
The 1 termination 5V power supply of analog-digital chip U3,2 end ground connection, 3 ends, 4 ends, 5 ends join with 61 ends, 60 ends, 59 ends of central processing unit U1 respectively, and 1 end that 6 ends and voltage change electric current chip U4 joins.Being connected of three terminals on three terminals on the analog-digital chip U3 and the central processing unit U1, but realized D/A converter module receives changes electric current from the voltage supplied of central processing unit output voltage V
Out
Voltage changes the 2 end ground connection of electric current chip U4,5 end ground connection, 7 ends and 12 ends are connected (7 ends with 12 ends respectively with 1 end of electric current output interface J2 with 2 ends be connected) through electric current output interface J2 with using terminal as the output of electric current, and realization is with the stable electric current supply use terminal with 4～20mA.
Shown in Fig. 3 G, alarm output module at first receives from the high-low level signal PC5 of the 40 ends output of central processing unit U1, this height electricity signal PC5 frequently connects the 5V power supply after resistance R 34, and this high-low level signal PC5 is again through being connected to after the resistance R 35 on the base stage of triode Q9; The emitter of triode Q9 is connected on 2 ends of relay K 1, the grounded collector of triode Q9; Be parallel with diode D11 between 2 ends of relay K 1 and 1 end, and 1 termination 5V power supply, 3 ends of relay K 1,4 ends and 5 ends are as the switch of alarm signal output, and alarm signal output interface J6 can join with loudspeaker, realizes the broadcast of alarm sound.In the utility model, it is 8550 that triode Q9 chooses model, and it is TQ2-5V that relay K 1 is chosen model.
The supervising device of a kind of voltage input and current output of the present utility model can be with 0～5V analog voltage signal V
VoltageInput, and 4～20mA analog current signal I
Electric currentOutput, be common analog signal in the commercial Application now, solved stability and the required precision of using terminal that electric current is needed, thereby protected the use terminal effectively.
Claims (5)
1, a kind of supervising device to voltage input and current output, it is characterized in that: this supervising device includes a housing, and is installed in the circuit board in the housing; Be provided with voltage interface (J3), current interface (J2) and remote alarm interface (J6) on the top panel of housing, the right panel of housing is provided with power interface (J1), and the front panel of housing is provided with LCD display and keyboard;
Power interface (J1) is used for being connected with the direct current of 220V;
Voltage interface (J3) is used for and can exports 0～5V analog voltage signal V
VoltageProduct;
Current interface (J2) is used for being connected with using end product;
Remote alarm interface (J6) be used to provide audible alarm;
Circuit board includes:
One central processing unit, range S and ratio K and the digital voltage signal V of this central processing unit to setting among the command information INF that receives
InCarry out difference processing and obtain the operating voltage V of 12 bit values
OutThis operating voltage V
OutExport the demonstration of the enterprising line number font of LCD MODULE formula on the one hand to; This operating voltage V on the other hand
OutBe output to alarm output module; In alarm output module, this operating voltage V
OutWith voltage threshold P
InCompare, work as V
Out〉=P
InThe time, alarm output module produces alarm signal and carries out alarm; Work as V
Out＜P
InThe time, with the operating voltage V of 12 bit values
OutExport to D/A converter module;
One analog-to-digital conversion module, this analog-to-digital conversion module are used for the 0～5V analog signal V with the outside input
VoltageConvert digital voltage signal V to
InOffering central processing unit handles;
The 12 bit value operating voltage V that one D/A converter module, this D/A converter module will receive
OutCarry out exporting after the digital-to-analogue conversion current signal I of 4～20mA
Electric current
One alarm output module, this alarm output module is used for the output of warning message;
One keyboard issues command information INF by this keyboard to central processing unit, and this order information INF includes range S, ratio K and voltage threshold P
In
One LCD MODULE, this LCD MODULE are used to carry out the information that digital form shows each input, output.
2, a kind of supervising device to voltage input and current output according to claim 1, it is characterized in that: the range S that keyboard operation is provided with input voltage is 0～9999.
3, a kind of supervising device to voltage input and current output according to claim 1, it is characterized in that: keyboard is provided with output current I
Electric currentRatio K be 0＜K≤9.9.
4, a kind of supervising device according to claim 1 to voltage input and current output, it is characterized in that: central processing unit is chosen the ATmega128 chip, modulus conversion chip in the analog-to-digital conversion module is chosen the MAX187 chip, analog-digital chip in the D/A converter module is chosen the MAX5712 chip, and the voltage in the D/A converter module changes the electric current chip and chooses the ISOEM-U1-P1-O1 chip.
5, a kind of supervising device to voltage input and current output according to claim 1 is characterized in that the circuit connection of the circuit board in the supervising device is:
8 terminals of 10 ends of central processing unit (U1)～17 ends join with 1 end～8 ends of the interface (J4) of keyboard respectively;
8 terminals of 25 ends of central processing unit (U1)～32 ends join with 7 ends～14 ends of the interface (J5) of LCD MODULE respectively, 36 ends of central processing unit (U1), 37 ends, 38 ends respectively with 4 ends of LCD interface J5,5 ends, 6 ends join, 2 termination 5V power supplys of the interface of LCD MODULE (J5), 3 ends are connected on 2 ends of adjustable resistance R27, the 1 termination 5V power supply of adjustable resistance R27, the 3 end ground connection of adjustable resistance R27,1 end of the interface of LCD MODULE (J5) is connected on 3 ends of adjustable resistance R27,16 end ground connection of the interface of LCD MODULE (J5), 15 ends of the interface of LCD MODULE (J5) connect the 5V power supply after resistance R 32;
Analog-to-digital conversion module receives the 0～5V voltage V by the outside input
Voltage, this voltage V
VoltageAt first behind a filter circuit filtering ripple, be connected on 2 ends of modulus conversion chip (U2) through a resistance R 3, filter circuit is made up of diode D1 and capacitor C 5 again, and diode D1 and capacitor C 5 are connected in parallel on voltage V
VoltageAnd digitally; 8 ends of modulus conversion chip (U2), 7 ends, 6 ends join with 47 ends, 49 ends, 48 ends of central processing unit (U1) respectively, 5 end ground connection of modulus conversion chip (U2), 1 termination 5V power supply of modulus conversion chip (U2), 3 termination 5V power supplys of modulus conversion chip (U2), and 3 ends and digitally between be connected to another filter circuit, this filter circuit is made of capacitor C 6 and capacitor C 7, this capacitor C 6 and capacitor C 7 be connected in parallel on 3 ends and digitally between, 4 ends are through capacitor C 8 ground connection;
D/A converter module includes analog-digital chip (U3), voltage changes electric current chip (U4) and 5V changes 24V power supply chip (U6); 5V changes 1 termination 5V voltage of 24V power supply chip (U6), 2 end ground connection, and 3 ends output 24V voltage, and join 4 end ground connection with 4 ends that voltage changes electric current chip (U4);
1 termination 5V power supply of analog-digital chip (U3), 2 end ground connection, 3 ends, 4 ends, 5 ends join with 61 ends, 60 ends, 59 ends of central processing unit (U1) respectively, and 1 end that 6 ends and voltage change electric current chip (U4) joins.Being connected of three terminals on three terminals on the analog-digital chip (U3) and the central processing unit (U1);
Voltage changes 2 end ground connection of electric current chip (U4), 5 end ground connection, and 7 ends are connected with using terminal through electric current output interface (J2) with the output of 12 ends as electric current, and realization is used terminal with the stable electric current supply with 4～20mA;
Alarm output module at first receives the height electricity frequency signal PC5 from the 40 ends output of central processing unit (U1), this high-low level signal PC5 connects the 5V power supply after resistance R 34, and this high-low level signal PC5 is again through being connected to after the resistance R 35 on the base stage of triode Q9; The emitter of triode Q9 is connected on 2 ends of relay (K1), the grounded collector of triode Q9; Be parallel with diode D11 between 2 ends of relay (K1) and 1 end, and 1 termination 5V power supply, 3 ends of relay (K1), 4 ends and 5 ends are as the switch of alarm signal output, and alarm signal output interface (J6) joins with loudspeaker, realizes the broadcast of alarm sound.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920106726U CN201378797Y (en) | 2009-04-07 | 2009-04-07 | Monitoring device for voltage input and current output |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920106726U CN201378797Y (en) | 2009-04-07 | 2009-04-07 | Monitoring device for voltage input and current output |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201378797Y true CN201378797Y (en) | 2010-01-06 |
Family
ID=41518918
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920106726U Expired - Fee Related CN201378797Y (en) | 2009-04-07 | 2009-04-07 | Monitoring device for voltage input and current output |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201378797Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101551415B (en) * | 2009-03-30 | 2012-07-25 | 福建上润精密仪器有限公司 | Passive power distribution isolator and 0-20mA signal passive isolator |
| CN101533040B (en) * | 2009-04-07 | 2012-08-22 | 北京华视通广科技有限公司 | Monitor device for voltage input and current output |
| CN108075546A (en) * | 2017-12-29 | 2018-05-25 | 中国人民解放军陆军工程大学 | A kind of portable multifunctional charging unit |
| CN110703720A (en) * | 2019-11-26 | 2020-01-17 | 国网江苏省电力有限公司南通供电分公司 | Distributed safety power supply management system |
-
2009
- 2009-04-07 CN CN200920106726U patent/CN201378797Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101551415B (en) * | 2009-03-30 | 2012-07-25 | 福建上润精密仪器有限公司 | Passive power distribution isolator and 0-20mA signal passive isolator |
| CN101533040B (en) * | 2009-04-07 | 2012-08-22 | 北京华视通广科技有限公司 | Monitor device for voltage input and current output |
| CN108075546A (en) * | 2017-12-29 | 2018-05-25 | 中国人民解放军陆军工程大学 | A kind of portable multifunctional charging unit |
| CN110703720A (en) * | 2019-11-26 | 2020-01-17 | 国网江苏省电力有限公司南通供电分公司 | Distributed safety power supply management system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: ZHANG HONGJUN Free format text: FORMER OWNER: BEIJING QUANSHI TONGGUANG TECHNOLOGY CO., LTD. Effective date: 20110914 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 100080 HAIDIAN, BEIJING TO: 100080 CHAOYANG, BEIJING |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20110914 Address after: 100080 room 58, courtyard 210-2101, Xin Xin Xin Bei Road, Beijing, Chaoyang District Patentee after: Zhang Hongjun Address before: 100080 Beijing city Haidian District Zhongguancun west Shan Street No. 1 Room 302 3 cubic court Patentee before: Beijing Quanshi Tongguang Technology Co., Ltd. |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100106 Termination date: 20120407 |