CN1221111C - Business gateway - Google Patents
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- CN1221111C CN1221111C CN 03111319 CN03111319A CN1221111C CN 1221111 C CN1221111 C CN 1221111C CN 03111319 CN03111319 CN 03111319 CN 03111319 A CN03111319 A CN 03111319A CN 1221111 C CN1221111 C CN 1221111C
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Abstract
The present invention discloses a business gateway with a beautiful and peculiar appearance, which uses a main board of an industrial computer as one of control cores to complete the Ethernet link to exchange data with a database center and complete the double-port interface control, the liquid crystal display control, the printer control and the keyboard input control. The present invention is characterized in that the circuit design uses the main board of the industrial computer as one of the control cores, and the other core is a second control main board composed of a safety processor, a CPLD controller, a large-volume static RAM and an RS485 interface control circuit.
Description
Technical field
The present invention relates to a kind of networking Node Controller.
Background technology
In existing all-purpose card, business consumption and dining room microcomputer meal sale system, great majority all adopt popular RS485 protocol network at present, and the RS485 network control system adopts built-in computer or external RS485 controller more, also claim server to finish, wherein the RS485 controller is finished link and the control to the window machine, and computer is then finished and the linking or stand-alone work of central server by Ethernet.This kind method shortcoming is that on the one hand customer investment is big, and network shop and scope are big on the other hand, and fault is many, and maintenance is big, because computer can not the special plane special use, so need special messenger's post, the special messenger safeguards, drops into bigger in addition.
Technical scheme
The objective of the invention is to disclose a kind of Business gateway, in order to reach the complete unification of Ethernet control and RS485 network control, finish the nodal function that the card system network connects, finish network control of window machine and service function, finish the basic setting of terminal use, inquiry and printing function.Circuit design adopts industrial control computer mainboard as one of control core, and another control core is by safe processor, CPLD controller, second control main board that big capacity static RAM (SRAM) and RS485 interface control circuit are formed.
The present invention is characterized in that the composition of circuit includes: an industrial control mainboard 1 is a upper strata control core, and industrial control mainboard 1 embeds the function and the assembly of more complete desktop computer, industrial control mainboard 1 has the CPU processor, carry BIOS, 16 above data/address buss, the above internal memory of 4MB, real-time clock, self-defined ISA or PC104 bus interface, 10MB or 100MB Ethernet interface are supported electric board (DOC), carry two-way parallel port, the RS232 serial ports.
Industrial control mainboard is used ICP/IP protocol by Ethernet interface 2RJ45 seat 22, the link data center, and when on the Ethernet transfer of data being arranged, Ethernet status indicator lamp flicker on the status indicator lamp 12.
The safe processor 14 of second control main board is the bottom control core, and safe processor 14 self has two and overlaps separately independently data address bus, and a cover bus is that safe storage is used, and is another set of for can expand use.Safe processor 14 outer setting battery 17 and program data memories 13, safe processor 14 is finished storage and exchange and IO expansion by another set of data address bus and is used.Safe processor 14 has independently asynchronous serial port and can expand the IO mouth, and serial port is used for online ROMPaq.
Safe processor 14 is finished two-port RAM 11 read-write controls by address latch 15 and CPLD16 according to the programming requirement, and finishes and industrial control mainboard 1 exchanges data by protocol requirement.
Safe processor 14 is finished big capacity RAM18 read-write control by address latch 15 and CPLD controller 16, utilizes big capacity RAM18 database that storage system is used, white list, blacklist and various form parameter.
Safe processor 14 links to each other with RS485 receiver 19 with RS485 transmitter 20 after passing through the CPLD16 logical encrypt by asynchronous serial port, RS485 transmitter 20 sends data and orders the window machine apart from twisted-pair feeder by socket 21 and length, passes through RS485 receiver 19 receive window machine data and requests with long apart from twisted-pair feeder by aviation socket 21.
Safe processor 14 is by the RS485 status indicator lamp on 1 IO mouth state of a control display lamp 12, and when the work of window machine was arranged on the RS485 circuit, indicator light glimmered.
Safe processor 14 of the present invention be DS5002FP as bottom controller, program data memory adopts 628100 static RAM (SRAM)s, 628400 capacity are the 128K byte, wherein the program area uses the 64K byte, the 64K byte is used in the data field.The external 3V lithium battery 17 of safe processor, the existence of this battery can guarantee that program and data do not lose.The external 12MHz crystal oscillator of safe processor.
Big capacity RAM18 circuit arrangement big capacity static ram chip, be 34 megabit sotrages, chip selection signal comes from CPLD controller logic circuit.
It is MAX690A or IMP690A that watchdog circuit adopts chip, safe processor send pulse signal to MAX690A the 6th human hair combing waste in effective time again, overtime the 7th pin of not sending out pulse MAX690A can send reset pulse, reset pulse is through behind the 1st pin of CPLD, from the 8th pin output of CPLD, safe processor resets.House dog follow-up work simultaneously voltage, when operating voltage was lower than 4.65V, watchdog circuit was exported reset signal equally.
Two-port RAM 11 circuit
Be two-port RAM 7132, two cover address buss, its left side bus is controlled by the bottom safe processor, and the 1st pin chip selection signal is produced by CPLD decoding, its left side the 3rd pin BUSY signal send safe processor after changing through CPLD, as the foundation of the anti-read/write conflict of safe processor.Its right side bus is controlled by industrial control mainboard, and the 51st pin chip selection signal is produced by CPLD decoding.
Static cache RAM circuit static RAM (SRAM), model is 6264 or 62256, and its data address bus is controlled by industrial control mainboard, and its 20th pin chip selection signal is produced by CPLD decoding.
The receiver of RS485 transmitting-receiving control circuit is 75174, and transmitter is 75175, and transceiver resolves into 4 road RS485 window machine circuits, and its control signal is used for safe processor after the CPLD conversion.
The CPLD decoding control circuit is the CPLD logic control circuit, write logical program after, realize the logical encrypt and the logic control of whole Business gateway.
Indication control circuit backlight has disposed 1 resistance, 8550,1 diode IN4001 of 1 triode and 1 relay EC2-5NJ or TX2-5V finish the control of LCD backlight, control signal is from CPLD encoded control signal, the control signal control relay is the Control work status indicator lamp simultaneously, when the relay adhesive, backlight bright and indicator light goes out, when relay disconnects, backlight going out and indicator light is bright.
The buzzer control circuit is by 1 resistance, and a triode 8550 and 1 buzzer are formed, and buzzer yowls when the control signal low level.
A data drive circuit of keyboard printing interface control circuit 74HC45 finishes printer data and drives, and the 19th pin chip selection signal is from the CPLD logical circuit.Potentiometer drives for LCD provides negative pressure.In addition two data drive circuit 74HC245 and 74HC273 finish keyboard interface control, and 74HC273 also provides the control signal of two-way status indicator lamp simultaneously, and 74HC245 the 19th pin and 74HC273 the 11st pin chip selection signal come from the CPLD decoding circuit.
The indicator light control circuit is 3 road indicator lights, and each road is all by 1 controlling resistance, and 9013,1 current-limiting resistances of 1 triode and a light-emitting diode are formed, and the control signal level is effectively high.
The Ethernet conversion interface circuit is made up of two jack interfaces, is independent 1 wiring board.
The printer change-over circuit is by 3 sockets, and 10 current-limiting protection resistance and 9 filtering protection electric capacity are formed.
Description of drawings
Fig. 1 is the utility model product appearance figure
Fig. 2 is the utility model general structure block diagram
Fig. 3 is the utility model safe processor control principle figure
Fig. 4 is the big capacity ram cell of a utility model schematic diagram
Fig. 5 is the utility model two-port RAM unit schematic diagram
Fig. 6 is the utility model RS485 interface unit schematic diagram
Fig. 7 is the utility model keyboard print unit schematic diagram
Fig. 8 is the utility model bus interface and prints the converting unit schematic diagram
Fig. 9 is the utility model CPLD controller principle figure
Figure 10 is the utility model Ethernet interface unit schematic diagram
Figure 11 is the utility model indicator light control unit schematic diagram
Figure 12 is the utility model power source conversion control unit schematic diagram
Embodiment
The Business gateway structure is made up of up and down two housings and part, housing be the plastic part complete machine from the front, its top, the right installation LCD 25, the LCD specification is 240 * 128 dot matrixs, is with backlight.Bottom, the right fitting key disk module, keyboard is divided into function key area 26 and 27 two zones of digital editing keypad, and slip lid 28 is housed on the digital editing keypad, draws back keyboard slip lid 28, can the operand keyboard.Printer 30 is mainly installed on its left side, and cut paper steel disc 31 and slip lid 29 are housed on the printer, draws back slip lid 29 and can see the printer head, and printer is a line-type thermal printer, and paper is wide to be 57.5 millimeters.Also have 3 indicator lights to be followed successively by window machine status indicator lamp 35, Ethernet status indicator lamp 40 and Business gateway relay indicating light 41 from left to right at its right upside, be 3 kinds of different colors.New registration label 42 in the installation " SYNJONES " newly on its right downside printer slip lid 29.The Business gateway both sides have two panels 34 in addition, play attractive in appearance and fixing effect of going up lower house.The Business gateway interface is followed successively by 220 volts the supply socket interface 39 of exchanging of band Insurance Block 38 and mains switch 37 from left to right at the Business gateway upside, 4 road RS485 window machines, 4 core aviation jack interfaces 22,25 pin D type printer jack interfaces 23, Ethernet RJ45 interface 24.
The Business gateway circuit part is described as follows:
In Fig. 2, industrial control mainboard 1 is upper strata control core, by parallel interface 4, be connected with printer 5 through printing winding displacement, industrial control mainboard 1CPU controls printer according to programming, mainly prints self-detection result, and parameter and statistical report form are set, printer has also been expanded external interface, can pass through 25 core print seats, 23 external printers.Industrial control mainboard 1 reads LCD 9 states, and to LCD 9 write commands and data.Keyboard is 4 row * 4 row, 17 key effective models, and keyboard is divided into function key area and digital editing keypad two parts, and each key name of keyboard is called: function key " MENU ", function key " ESC ", function key " OK ", function key " ▲ ", function key " ", numerical key " 0 ", numerical key " 1 ", numerical key " 2 ", numerical key " 3 ", numerical key " 4 ", numerical key " 5 ", numerical key " 6 ", numerical key " 7 ", numerical key " 8 ", numerical key " 9 ", numerical key " ", function key " C ".
Two lamps in the state of a control indicator light 12, wherein 1 is the Ethernet status indicator lamp, another is the Business gateway relay indicating light, relay indicating light and LCD backlight are controlled to be unified signal, and when bright, relay indicating light goes out when backlight, when backlight going out, relay indicating light is bright.
The safe processor control unit as shown in Figure 3, bottom of the present invention adopts safe processor DS5002FP as bottom controller, and program storage adopts 628100 static RAM (SRAM)s, and 628400 capacity are the 128K byte, wherein the program area uses the 64K byte, and the 64K byte is used in the data field.The external 3V lithium battery of safe processor, the existence of this battery can guarantee that program and data do not lose.Peace is removed the external 12MHz crystal oscillator of processor.
Big capacity RAM circuit as shown in Figure 4, it is 34 megabit sotrages that bottom safe processor of the present invention has disposed big capacity static ram chip outward, chip selection signal comes from the CPLD logical circuit.
Watchdog circuit as shown in Figure 5, bottom safe processor of the present invention has disposed outward to guard the gate purchases circuit, it is MAX690A or IMP690A that this circuit adopts chip, this circuit requirement safe processor send pulse signal to MAX690A the 6th human hair combing waste in effective time again, be about 1.6 seconds effective time, overtime the 7th pin of not sending out pulse MAX690A can send reset pulse, and reset pulse is through behind the 1st pin of CPLD, from the 8th pin output of CPLD, safe processor resets.House dog follow-up work simultaneously voltage, when operating voltage was lower than 4.65V, watchdog circuit was exported reset signal equally.
The two-port RAM circuit
As shown in Figure 5, type bottom of the present invention has disposed two-port RAM 7132, capacity is the 2K byte, two-port RAM has two cover address buss, its left side bus is controlled by the bottom safe processor, the 1st pin chip selection signal is produced by CPLD decoding, and its left side the 3rd pin BUSY signal send safe processor after changing through CPLD, as the foundation of the anti-read/write conflict of safe processor.Its right side bus is controlled by industrial control mainboard, and the 51st pin chip selection signal is produced by CPLD decoding.
Static cache RAM circuit as shown in Figure 5, bottom of the present invention has disposed static RAM (SRAM), model is 6264 or 62256, its data address bus is controlled by industrial control mainboard, its 20th pin chip selection signal is produced by CPLD decoding.
RS485 transmitting-receiving control circuit as shown in Figure 6, bottom safe processor of the present invention has disposed RS485 transmitting-receiving control circuit outward, and receiver is 75174, and transmitter is 75175, transceiver resolves into 4 road RS485 window machine circuits, and its control signal is used for safe processor after the CPLD conversion.
The CPLD decoding control circuit as shown in Figure 9, bottom of the present invention has disposed the CPLD logic control circuit, write logical program after, realize the logical encrypt and the logic control of whole Business gateway.
Indication control circuit backlight as shown in figure 12, bottom of the present invention has disposed indication control circuit backlight, disposed 1 resistance (470 Europe), 1 triode (8550), 1 diode (IN4001) and 1 relay (EC2-5NJ or TX2-5V) are finished the control of LCD backlight, control signal is from CPLD encoded control signal, the control signal control relay is the Control work status indicator lamp simultaneously, when the relay adhesive, backlight bright and indicator light goes out, when relay disconnects, backlight going out and indicator light is bright.
The buzzer control circuit as shown in figure 12, bottom of the present invention has disposed the buzzer control circuit, this circuit is by 1 resistance (3.3K), a triode (8550) and 1 buzzer are formed, buzzer yowls when the control signal low level.
Keyboard printing interface control circuit as shown in Figure 7, bottom of the present invention has disposed keyboard printing interface control circuit, a data drive circuit (74HC45) is finished printer data and is driven, the 19th pin chip selection signal is from the CPLD logical circuit.Potentiometer (10K) drives for LCD provides negative pressure.Two data drive circuits (74HC245 and 74HC273) are finished keyboard interface control in addition, and 74HC273 also provides the control signal of two-way status indicator lamp simultaneously, and 74HC245 the 19th pin and 74HC273 the 11st pin chip selection signal come from the CPLD decoding circuit.
The indicator light control circuit as shown in Figure 7, the present invention has disposed the indicator light control circuit, indicator light circuit is an independently indicator light control board, be 3 road indicator lights, each road is all by 1 controlling resistance (4.7K), 1 triode (9013), 1 current-limiting resistance (470 Europe), with a diameter be that 3 millimeters light-emitting diode is formed, the control signal level is effectively high.
The Ethernet conversion interface circuit as shown in figure 10, bottom of the present invention has disposed the Ethernet interface change-over circuit, this circuit is made up of two jack interfaces, is independent 1 wiring board.
The printer change-over circuit as shown in Figure 8, bottom of the present invention has disposed the printer change-over circuit, this circuit is by 3 sockets, 10 current-limiting protection resistance (22 Europe) and 9 filtering protection electric capacity (2200pF) are formed.
The present invention has the following advantages:
1. this scheme adds General controller with former computer and compares, can be respectively structurally and patrol Accomplish complete unification on volume. Use Business gateway can accomplish special computer for special use, from And specialization is stronger.
2. modularized design is beneficial to exploitation, is convenient to safeguard. Can on this Business gateway function Autgmentability is strong, can be applied to other field. Integrated design mistake easy to use Transportation in the journey, installation, dismounting and maintenance.
3. use industrial control mainboard and safe processor respectively as upper strata control and bottom control Core makes the Business gateway Task-decomposing reasonable, and pressure is shared equilibrium, namely increases The security of data management and control, also can increase the real-time of Internet Transmission.
4. use industrial control mainboard as the upper strata control core, shorten the construction cycle, increase system System stability and security also make product more benefit and standard communications protocol interface. Industrial control mainboard adopts high speed processor, and big capacity internal memory also makes the data of product Management, Function Extension, standardized designs and self class rise to one newly Height.
5. use safe processor as the bottom control core, can improve the RS485 window The real-time performance of machine network control and service, the data storage security is reliable.
6. use CPLD as mainboard logical encrypt and control circuit, increased the guarantor of technology Close effect also makes the mainboard logic theory programme-controlled, saves design cost, improves The stability of product.
Claims (8)
1. Business gateway, by up and down two housings and part and interlock circuit are formed, it is characterized in that described circuit design adopts industrial control computer mainboard as one of control core, another control core is by safe processor, the CPLD controller, second control main board that big capacity static RAM (SRAM) and RS485 interface control circuit are formed, described industrial control mainboard (1) is a upper strata control core, and industrial control mainboard (1) embeds the function and the assembly of more complete desktop computer, industrial control mainboard (1) has the CPU processor, carry BIOS, 16 above data/address buss, the above internal memory of 4MB, real-time clock, self-defined ISA or PC104 bus interface, 10MB or 100MB Ethernet interface are supported electric board (DOC), carry two-way parallel port, the RS232 serial ports; Industrial control mainboard (1) is connected with printer (5) through printing winding displacement by parallel interface (4), and industrial control mainboard (1) CPU controls printer according to programming, and printer has also been expanded external interface, by 25 core print seats (23) external printer; Industrial control mainboard (1) is controlled LCD (9) by bus (3) through logic drive circuit (6) and CPLD controller (16), and read LCD (9) state to LCD (9) write command and data, industrial control mainboard (1) is swept (8) and the capable signal of sweeping of CPLD controller (16) output by bus (3) through row, and sweep (7) and CPLD controller (16) through row and read to be listed as and sweep signal, after trembling in the past and calculating, obtain keyboard actual key key assignments, industrial control mainboard (1) is by Ethernet status indicator lamp and the Business gateway relay indicating light of bus (3) in driving (8) and CPLD controller (16) state of a control indicator light (12), and relay indicating light and LCD backlight are controlled to be unified signal; Industrial control mainboard is used ICP/IP protocol by Ethernet interface (2) RJ45 seat (22), the link data center, and when on the Ethernet transfer of data being arranged, status indicator lamp (12) is gone up the flicker of Ethernet status indicator lamp; Industrial control mainboard (1) is finished two-port RAM (11) read-write control by bus (3) and CPLD controller (16) according to the programming requirement, and finishes and safe processor (14) exchanges data by protocol requirement; The safe processor of described second control main board (14) is the bottom control core, safe processor (14) self has two and overlaps separately independently data address bus, one cover bus is that safe storage is used, another set of for can expand use, outer setting battery of safe processor (14) (17) and program data memory (13), safe processor (14) is finished storage and exchange and IO expansion by another set of data address bus and is used, safe processor (14) has independently asynchronous serial port and can expand the IO mouth, and serial port is used for online ROMPaq; Safe processor (14) is finished two-port RAM (11) read-write control by address latch (15) and CPLD (16) according to the programming requirement, and finishes and industrial control mainboard (1) exchanges data by protocol requirement; Safe processor (14) is finished big capacity RAM (18) read-write control by address latch (15) and CPLD controller (16), utilizes big capacity RAM (18) database that storage system is used, white list, blacklist and various form parameter; Safe processor (14) links to each other with RS485 receiver (19) with RS485 transmitter (20) after passing through CPLD (16) logical encrypt by asynchronous serial port, RS485 transmitter (20) sends data and orders the window machine apart from twisted-pair feeder by socket (21) and length, pass through RS485 receiver (19) receive window machine data and request by aviation socket (21) and length apart from twisted-pair feeder, safe processor (14) is by the RS485 status indicator lamp on 1 IO mouth state of a control display lamp (12), when the work of window machine is arranged on the RS485 circuit, the indicator light flicker.
2. a kind of Business gateway as claimed in claim 1, it is characterized in that described safe processor (14) is that DS5002FP is as bottom controller, program data memory adopts 628100 static RAM (SRAM)s, 628400 capacity are the 128K byte, wherein the program area uses the 64K byte, and the 64K byte is used in the data field; The external 3V lithium battery (17) of safe processor, the existence of this battery can guarantee that program and data do not lose; The external 12MHz crystal oscillator of safe processor.
3. a kind of Business gateway as claimed in claim 1, the big capacity static ram chip that it is characterized in that described big capacity RAM (18) circuit arrangement is 34 megabit sotrages, chip selection signal comes from CPLD controller logic circuit.
4. a kind of Business gateway as claimed in claim 1, it is characterized in that it is MAX690A or IMP690A that described watchdog circuit adopts chip, safe processor send pulse signal to MAX690A the 6th human hair combing waste in effective time again, overtime the 7th pin of not sending out pulse MAX690A can send reset pulse, reset pulse is through behind the 1st pin of CPLD, the 8th pin output from CPLD, safe processor resets, house dog follow-up work simultaneously voltage, when operating voltage was lower than 4.65V, watchdog circuit was exported reset signal equally.
5. a kind of Business gateway as claimed in claim 1, it is characterized in that described two-port RAM (11) circuit is a two-port RAM 7132, two cover address buss, its left side bus is controlled by the bottom safe processor, the 1st pin chip selection signal is produced by CPLD decoding, and its left side the 3rd pin BUSY signal send safe processor after changing through CPLD, as the foundation of the anti-read/write conflict of safe processor, its right side bus is controlled by industrial control mainboard, and the 51st pin chip selection signal is produced by CPLD decoding.
6. a kind of Business gateway as claimed in claim 1 is characterized in that described static cache RAM circuit static RAM (SRAM), and model is 6264 or 62256, and its data address bus is controlled by industrial control mainboard, and its 20th pin chip selection signal is produced by CPLD decoding.
7. a kind of Business gateway as claimed in claim 1, the receiver that it is characterized in that described RS485 transmitting-receiving control circuit is 75174, transmitter is 75175, and transceiver resolves into 4 road RS485 window machine circuits, and its control signal is used for safe processor after the CPLD conversion.
8. a kind of Business gateway as claimed in claim 1 is characterized in that described CPLD decoding control circuit is the CPLD logic control circuit, write logical program after, realize the logical encrypt and the logic control of whole Business gateway; Indication control circuit backlight has disposed 1 resistance, 8550,1 diode IN4001 of 1 triode and 1 relay EC2-5NJ or TX2-5V finish the control of LCD backlight, control signal is from CPLD encoded control signal, the control signal control relay is the Control work status indicator lamp simultaneously, when the relay adhesive, backlight bright and indicator light goes out, when relay disconnects, backlight going out and indicator light is bright; The buzzer control circuit is by 1 resistance, and a triode 8550 and 1 buzzer are formed, and buzzer yowls when the control signal low level; A data drive circuit of keyboard printing interface control circuit 74HC45 finishes printer data and drives, and the 19th pin chip selection signal is from the CPLD logical circuit, and potentiometer drives for LCD provides negative pressure; In addition two data drive circuit 74HC245 and 74HC273 finish keyboard interface control, and 74HC273 also provides the control signal of two-way status indicator lamp simultaneously, and 74HC245 the 19th pin and 74HC273 the 11st pin chip selection signal come from the CPLD decoding circuit; The indicator light control circuit is 3 road indicator lights, and each road is all by 1 controlling resistance, and 9013,1 current-limiting resistances of 1 triode and a light-emitting diode are formed, and the control signal level is effectively high; The Ethernet conversion interface circuit is made up of two jack interfaces, is independent 1 wiring board; The printer change-over circuit is by 3 sockets, and 10 current-limiting protection resistance and 9 filtering protection electric capacity are formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03111319 CN1221111C (en) | 2003-03-26 | 2003-03-26 | Business gateway |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03111319 CN1221111C (en) | 2003-03-26 | 2003-03-26 | Business gateway |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1453967A CN1453967A (en) | 2003-11-05 |
| CN1221111C true CN1221111C (en) | 2005-09-28 |
Family
ID=29259927
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03111319 Expired - Lifetime CN1221111C (en) | 2003-03-26 | 2003-03-26 | Business gateway |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1221111C (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100448234C (en) * | 2006-07-17 | 2008-12-31 | 朱宁宁 | A communication gate in automatic system |
| CN102685037B (en) * | 2012-06-08 | 2015-12-02 | 汕头市易普联科技有限公司 | Gateway device |
| CN105404601B (en) * | 2015-11-26 | 2019-10-11 | 普天线缆集团(上海)楼宇智能有限公司 | Intelligent network scanner |
| CN112801654B (en) * | 2021-01-13 | 2023-08-15 | 广西筑波智慧科技有限公司 | Campus card soft silver gateway |
-
2003
- 2003-03-26 CN CN 03111319 patent/CN1221111C/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| CN1453967A (en) | 2003-11-05 |
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| C14 | Grant of patent or utility model | ||
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Effective date of registration: 20210706 Address after: No.380, Xuefu Road, Nangang District, Harbin City, Heilongjiang Province Patentee after: HARBIN SYNJONES HUAKE ELECTRONIC EQUIPMENT Co.,Ltd. Address before: 150086, No. 380, Xuefu Road, Nangang District, Heilongjiang, Harbin Patentee before: HARBIN SYNJONES ELECTRONIC Co.,Ltd. |
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| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20050928 |