CN102752880A - Control device and control method for controlling standard universal serial bus (USB) interface wireless local area network (WLAN) card to restart - Google Patents
Control device and control method for controlling standard universal serial bus (USB) interface wireless local area network (WLAN) card to restart Download PDFInfo
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- CN102752880A CN102752880A CN2012101922500A CN201210192250A CN102752880A CN 102752880 A CN102752880 A CN 102752880A CN 2012101922500 A CN2012101922500 A CN 2012101922500A CN 201210192250 A CN201210192250 A CN 201210192250A CN 102752880 A CN102752880 A CN 102752880A
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Abstract
The invention discloses a control device and a control method for controlling a standard universal serial bus (USB) interface wireless local area network (WLAN) card to restart. The control method includes the standard USB interface WLAN card is inserted into a USB A type female head, and a USB A type male head is inserted into a USB port of a common computer. A recommended standard (RS)-232 communication module collecting data information for the WLAN card and transmits the communication information to a central processor in adapting mode. A central processor module analyzes the received communication command and judges whether the standard USB interface WLAN card requires to be restarted or not and controls a relay control module connected with the central processor module according to command to conduct opening and closing action. The device and the method achieve restart of the standard USB interface WLAN card, avoid frequent manual maintenance of unguarded self-service devices and reduce operating cost.
Description
Technical field
The invention belongs to the electronics automation field, relate to control device and control method that control criterion USB interface wireless network card is restarted.
Background technology
At present, along with the covering of mobile radio network, a large amount of unmanned Possums is put in the actual operation; The ruuning situation that these unattended operation Possums often need be understood machinery equipment through wireless network realizes uploading and downloading of data, therefore; Guarantee the normal connection of the wireless network of unattended Possum; Being dynamically connected certainly after the realization network breaks off becomes the maintenance times that reduces machine, the key that cuts operating costs.
Existing Wireless Communication Equipment, based on low cost, the convenient characteristics of using; Used the wireless network card of a large amount of standard USB (USB is hereinafter to be referred as USB) interface, used the weak point that exists of this a kind of network interface card: because China Mobile; The needs along with operation of operators such as China Telecom; Need regularly wireless network to be planned again and optimizes, cause the wireless network card of the USB interface of standard need cut off the power supply after the plug again like this, register again to the network of operator once more with irregular; Otherwise will cause wireless network card can't be registered to the network of operator; And can't realize the connection of wireless network, in unattended Possum, internet off-line and the needs that just will cause equipment are to on-site maintenance.Through the wireless network card of the manual plug USB of people, let after the wireless network card outage, re-power again, be registered to again in the network of operator, realize network linking.
Summary of the invention
In order to overcome the prior USB wireless network card in unattended Possum; Can't be automatically the problem of licensed operator again; The control device that the present invention provides a kind of control criterion USB interface wireless network card to restart; This control device can restart by control criterion USB interface wireless network card, and realization standard USB interface network interface card is registered in the wireless network of operator automatically again.
The technical scheme that the present invention taked is; The control device that a kind of control criterion USB interface wireless network card restarts; Comprise the USB converting interface, communication module, CPU module, relay control module, power management module and the Wiring port that connect the standard USB interface network interface card; Control device of the present invention utilizes the electronic system method of control automatically, realizes that the wireless network card of standard USB interface is restarted automatically.
The invention has the beneficial effects as follows that realize that the standard USB interface wireless network card restarts, avoiding needs frequent manual maintenance at unattended Possum, cuts operating costs.
Description of drawings
Fig. 1 is a general structure sketch map of the present invention;
Fig. 2 is communication module circuit theory diagrams in the control device of the present invention;
Fig. 3 is CPU module circuit theory diagrams in the control device of the present invention;
Fig. 4 is control device repeat circuit control module circuit theory diagrams of the present invention;
Fig. 5 is power management module circuit theory diagrams in the control device of the present invention;
Fig. 6 is a SPX1117M303.3 power supply chip schematic diagram in Fig. 5 power management module;
Fig. 7 is a SPX1117M301.8 power supply chip schematic diagram in Fig. 5 power management module.
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is elaborated.
Control criterion USB interface wireless network card of the present invention restarts, and wireless network card is managed; Accomplish the automatic control of wireless network card through this control simultaneously and restart function.
As shown in Figure 1; Comprise the public head of USBA type, the female head of USBA type, power management module; RS-232 (being a kind of serial physical interface standard that the EIA of EIA (Electronic Industry Association) formulates) communication module that also comprises exchanges data; The CPU module of control data, automatic closed relay control module; RS-232 communication module, CPU module, relay control module connect successively; Power management module is respectively RS-232 communication module, CPU module, relay control module power supply is provided, installing 2PIN Wiring port between the public head of USBA type, the female head of USBA type, the connection lead of being made up of two leads; Connect lead one end and connect installing 2PIN Wiring port between the public head of USBA type, the female head of USBA type, the other end links with the 2PIN Wiring port that relay control module is provided with.
The USB interface structural representation; Comprise the public head of USB A type, the female head of USB A type is established the 2PIN Wiring port on the USB converting interface; The public head of USB A type is connected with the female head of USB A type; The public head of USB A type is connected with the 2PIN Wiring port through lead respectively with the female head of USB A type, and the public head of USB A type is inserted into the USB port of common computer, and the standard USB interface wireless network card is inserted in the female head of USB A type; So that realize that relay through being disconnected to the action that re-powers in the closing course, restarts to realize control criterion USB interface wireless network card again.
As shown in Figure 2; The circuit theory diagrams of RS-232 communication module; Comprise RS232 DB9 (9 needle interfaces of standard) interface, improve the stable RSM232 interface chip of RS-232 communication module, RS232 DB9 interface links to each other with the RSM232 interface chip, and the RSM232 interface chip one end ground connection other end connects voltage VDD5.0; Capacitor C 19 1 ends are connected with voltage VDD5.0 with the RSM232 interface chip respectively, other end ground connection.
Fig. 2, shown in 3; RS-232 communication module and CPU module be connected UART (the general serial data/address bus that has been to use microprocessor LPC2214FBD; Be used for asynchronous communication) parts; One of scheme of implementing is that RSM232 interface chip the 3rd pin LPC2214FBD microprocessor the 42nd pin connects, and indicates with TXD (transmission data); RSM232 interface chip the 4th pin LPC2214FBD microprocessor pin connects, and indicates with RXD (reception data).System can connect the RS-232 port of common computer or other control system, the communication process of realization and common computer or other control system through RS232 DB9 interface.
As shown in Figure 2, said CPU module circuit theory diagrams comprise the LPC2214FBD microprocessor of NXP company; The crystal oscillator of transmission of electric signals, the CAT706RVI chip that resets, the LPC2214FBD microprocessor is connected with capacitor C 2; Capacitor C 2 ground connection, crystal oscillator one end of 11.0592MHz connects the LPC2214FBD microprocessor, and the other end is connected with capacitor C 1; For realize that the LPC2214FBD microprocessor program moves in the flash memory of chip internal, LPC2214FBD microprocessor the 13rd pin is through moving VDD3.3 on the R3, and LPC2214FBD microprocessor the 16th pin is through moving VDD3.3 on the R4; LPC2214FBD microprocessor and the CAT706RVI chip that resets is connected; CAT706RVI reset chip and resistance R 10 and connect, the other end respectively be connected power vd D3.3 and capacitor C 25, capacitor C 25 ground connection.
Said microprocessor LPC2214FBD is 32 level controllers that NXP company releases, built-in 256KB flash memory able to programme, 16K RAM (random asccess memory); 2 UART, 76 programmable I/O (input/output port) pin is an amount ratio microprocessor more widely on the market; System resolves the instruction whether demand restarts the standard USB interface wireless network card, according to order through receiving the communication command of RS-232 communication module; Control is attached thereto the relay control module that connects, and carries out corresponding actions, wherein; 11.0592MHz crystal oscillator is used for the SECO of LPC2214FBD microprocessor internal circuit and RS-232 communication module for the LPC2214FBD microprocessor provides external clock, the CAT706RVI chip that resets is used for LPC2214FBD supervisor micro processor and in use normally resets; The CAT706RVI chip that resets has watchdog function; Through the LPC2214FBD microprocessor in running at 1.6S in the time, provide the variation of a level through the LPC2214FBD microprocessor, realize CAT706RVI the resetting of chip internal house dog clock that reset; The LPC2214FBD microprocessor does not reset in normal course of operation; When the program running of LPC2214FBD microprocessor internal is unusual, can't provide the variation of a level at the LPC2214FBD microprocessor, will cause CAT706RVI the overflowing of chip internal house dog clock that reset; The CAT706RVI chip internal processes that resets, the assurance system normally moves.
As shown in Figure 4, said relay control module circuit theory diagrams comprise SN7407N level transferring chip, TIL_117 optical coupler, ULN2804A chip for driving; JQC-3FF type relay, the I/O output function of use LPC2214FBD microprocessor, output high level; Embodiment is: the 131st pin of LPC2214FBD microprocessor is used for level output; SN7407N level transferring chip one end is connected with the LPC2214FBD microprocessor, and the other end is connected with the TIL_117 optical coupler, and the SN7407N level transferring chip is provided with ground connection simultaneously; Power vd D5.0 connects SN7407N level transferring chip and TIL_117 optical coupler; The TIL_117 optical coupler connects power vd D12 and ULN2804A chip for driving, and the ULN2804A chip for driving is provided with ground connection, and the ULN2804A chip for driving also connects JQC-3FF type relay and diode D10 simultaneously; Power vd D12 connects JQC-3FF type relay and diode D10, and JQC-3FF type relay connects second Wiring port.
Because the LPC2214FBD microprocessor is the 3.3V power-supply system, logical SN7407N level transferring chip realizes the conversion of 3.3V level and 5V level, receive the instruction of the network interface card that resets of other control system when the LPC2214FBD microprocessor after; After SN7407N level transferring chip voltage transitions, realize that the luminescence segment of TIL_117 optical coupler is luminous, conducting TIL_117 optical coupler; The voltage of 12V is applied on the ULN2804A chip for driving, produces attraction, the contained spring sheet is flicked thereby drive JQC-3FF type relay internal electrical magnet; Cause JQC-3FF type relay to become and open circuit,, break off the power supply of standard USB interface network interface card through the structure of USB converting interface by short circuit; After 2 seconds, the low level of LPC2214FBD microprocessor output is after SN7407N level transferring chip voltage transitions; The luminescence segment of realization TIL_117 optical coupler stops luminous, thereby turn-offs the TIL_117 optical coupler, and the voltage of 12V will break off on the ULN2804A chip for driving; The attraction that JQC-3FF type relay internal electrical magnet produces disappears, and the contained spring sheet is resetted, and JQC-3FF type relay becomes short circuit by opening circuit; Structure through the USB converting interface; From the power supply of new connection standard USB interface network interface card, thereby the power supply of realizing the standard USB interface network interface card is disconnected to a closed variation, realizes restarting of standard USB interface network interface card.
Of Fig. 5 to 7, said power management module circuit theory diagrams comprise LM2575-5R4G power supply chip, SPX1117M303.3 power supply chip, SPX1117M301.8 power supply chip; Voltage input SPX1117M301.8 power supply chip; The SPX1117M301.8 power supply chip connects the LM2575-5R4G power supply chip through D8, and meets filter capacitor C38, capacitor C 38 other end ground connection; LM2575-5R4G power supply chip voltage output end meets voltage stabilizing didoe D5; Said diode D5 ground connection, the LM2575-5R4G power supply chip connects inductance L 4 one ends, as the 5V voltage output end.The LM2575-5R4G power supply chip connects SPX1117M303.3 power supply chip and SPX1117M301.8 power supply chip; The SPX1117M303.3 power supply chip is as the 3.3V voltage output end, and through filter capacitor C21, C22 ground connection; While SPX1117M303.3 power supply chip ground connection; The SPX1117M301.8 power supply chip is as the 1.8V voltage output end, and through filter capacitor C23, C24 ground connection; While SPX1117M301.8 power supply chip ground connection, the LPC2214FBD microprocessor connects SPX1117M303.3 power supply chip and SPX1117M301.8 power supply chip.
Claims (8)
1. control device that control criterion USB interface wireless network card is restarted; Comprise at least two USB interfaces, power management module; It is characterized in that: said control device also comprises the RS-232 communication module that inserts data, the CPU module and the relay control module of control data, and said RS-232 communication module, CPU module, relay control module connect successively; Said power management module is respectively RS-232 communication module, CPU module, relay control module power supply is provided; Said relay control module is connected through the 2PIN Wiring port that is respectively equipped with said USB interface.
2. the control device that a kind of control criterion USB interface wireless network card according to claim 1 is restarted; It is characterized in that: described USB interface; Comprise public head of USB A type and the female head of USB A type, said USB public affairs head and the middle 2PIN Wiring port that is provided with of the female head of said USB.
3. the control device that a kind of control criterion USB interface wireless network card according to claim 1 is restarted, it is characterized in that: said RS-232 communication module comprises interface, interface chip; Said interface can be selected one or more in RS232 DB9 interface and the parallel interface, and said interface chip can be selected the RSM232 interface chip.
4. the control device that a kind of control criterion USB interface wireless network card according to claim 1 is restarted is characterized in that: said CPU module, comprise chip, and crystal oscillator, chip are connected with the chip that resets of crystal oscillator respectively; Said chip can be selected the LPC2214FBD microprocessor chip, and the said oscillator chip that resets can be selected the CAT706RVI chip that resets.
5. the control device that a kind of control criterion USB interface wireless network card according to claim 1 is restarted; It is characterized in that: said relay control module; Comprise level transferring chip; The optical coupler of transmission of electric signals, relay and the chip for driving and the 2PIN Wiring port that drive relay, said level transferring chip, optical coupler, relay, chip for driving and said 2PIN Wiring port connect successively.
6. the control device that a kind of control criterion USB interface wireless network card according to claim 1 is restarted; It is characterized in that: said power management module; Comprise power supply chip, said power supply chip can be selected LM2575-5R4G power supply chip, SPX1117M303.3 power supply chip, SPX1117M301.8 power supply chip.
7. adopt the control method of the control device that the described a kind of control criterion USB interface wireless network card of claim 1 restarts, comprise the steps:
A, standard USB interface wireless network card insert the female head of USB A type, and the public head of USB A type is inserted into the USB port of common computer;
B, RS-232 communication module transfer to central processing unit to communication information to wireless network card image data information;
C, the communication command of CPU module to receiving are resolved the instruction whether demand restarts the standard USB interface wireless network card, and according to order, control is attached thereto the relay control module that connects, and opens and closed action.
8. control method according to claim 7 is characterized in that the RS-232 communication module is connected through microprocessor with CPU module; The crystal oscillator that comprises in the said CPU module is that microprocessor provides external clock, is used for the SECO of microprocessor internal circuit and RS-232 communication module, comprises the chip that resets in the said CPU module; Be used for the supervisor micro processor and in use normally reset, the chip that resets has watchdog function, through microprocessor in running at 1.6S in the time; Provide the variation of a level through microprocessor; Realization the resetting of chip internal house dog clock that reset, microprocessor does not reset in normal course of operation, when the microprocessor internal program running is unusual; Can't provide the variation of a level at microprocessor; To cause resetting the overflowing of chip internal house dog clock, the chip internal processes that resets, the assurance system normally moves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101922500A CN102752880A (en) | 2012-06-12 | 2012-06-12 | Control device and control method for controlling standard universal serial bus (USB) interface wireless local area network (WLAN) card to restart |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101922500A CN102752880A (en) | 2012-06-12 | 2012-06-12 | Control device and control method for controlling standard universal serial bus (USB) interface wireless local area network (WLAN) card to restart |
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| CN102752880A true CN102752880A (en) | 2012-10-24 |
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| CN2012101922500A Pending CN102752880A (en) | 2012-06-12 | 2012-06-12 | Control device and control method for controlling standard universal serial bus (USB) interface wireless local area network (WLAN) card to restart |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106161109A (en) * | 2016-08-30 | 2016-11-23 | 西安诺瓦电子科技有限公司 | Network Abnormal self-recovery method |
| CN109002413A (en) * | 2018-07-19 | 2018-12-14 | 北京赛普泰克技术有限公司 | Data-acquisition system |
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| CN101989248A (en) * | 2009-07-31 | 2011-03-23 | 比亚迪股份有限公司 | Universal serial bus (USB) equipment and method for restarting USB equipment |
| CN201846323U (en) * | 2010-10-29 | 2011-05-25 | 中兴通讯股份有限公司 | Reset circuit and terminal |
| CN102455946A (en) * | 2010-10-19 | 2012-05-16 | 瑞昱半导体股份有限公司 | Detection and recovery circuit for exceptions of USB device, and method thereof |
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- 2012-06-12 CN CN2012101922500A patent/CN102752880A/en active Pending
Patent Citations (4)
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| CN101369238A (en) * | 2008-09-02 | 2009-02-18 | 苏州大学 | Exception monitoring and reset processing method for USB equipment |
| CN101989248A (en) * | 2009-07-31 | 2011-03-23 | 比亚迪股份有限公司 | Universal serial bus (USB) equipment and method for restarting USB equipment |
| CN102455946A (en) * | 2010-10-19 | 2012-05-16 | 瑞昱半导体股份有限公司 | Detection and recovery circuit for exceptions of USB device, and method thereof |
| CN201846323U (en) * | 2010-10-29 | 2011-05-25 | 中兴通讯股份有限公司 | Reset circuit and terminal |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106161109A (en) * | 2016-08-30 | 2016-11-23 | 西安诺瓦电子科技有限公司 | Network Abnormal self-recovery method |
| CN109002413A (en) * | 2018-07-19 | 2018-12-14 | 北京赛普泰克技术有限公司 | Data-acquisition system |
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Application publication date: 20121024 |