CN202535392U - Protocol conversion device - Google Patents
Protocol conversion device Download PDFInfo
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- CN202535392U CN202535392U CN2012201172317U CN201220117231U CN202535392U CN 202535392 U CN202535392 U CN 202535392U CN 2012201172317 U CN2012201172317 U CN 2012201172317U CN 201220117231 U CN201220117231 U CN 201220117231U CN 202535392 U CN202535392 U CN 202535392U
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- protocol conversion
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Abstract
The utility model discloses a protocol conversion device which comprises a control unit, a lower computer communication unit, an upper computer communication unit and a state output unit, where in the lower computer communication unit, the upper computer communication unit and the state output unit are respectively connected with the control unit. The control unit is used for protocol conversion of information transmission between a central air-conditioner group and an upper computer, wherein the central air-conditioner group is connected with the lower computer communication unit, and the upper computer is connected with the upper computer communication unit. The control unit is also used for producing signals indicating the running state of the central air-conditioner group according to received running parameters of the central air-conditioner group, and the signals are output through the state output unit. When the protocol conversion device is used, the received running parameters of the central air-conditioner group can go through protocol conversion to be output to the upper computer, and the signals of the running state of the central air-conditioner group being output by other means also can be achieved, thereby achieving reusability of the function of the protocol conversion device.
Description
Technical field
The utility model relates to a kind of protocol conversion apparatus that air-conditioning detects that is applied to.
Background technology
Variable refrigerant volume type central air-conditioning (VRF; Variable Refrigerant Flow) convenient, energy-conservation and need not concentrate characteristics such as machine room layout because of it; Be used widely in China, be applied to has become the important component part in air-conditioning market in the middle of subway station and the building.
But above-mentioned VRF JA(junction ambient) and equipment monitoring system (BAS, Building AutomationSystem) are to realize demonstration and monitoring to the VRF running status through BAS.Be provided with protocol conversion apparatus between BAS and the VBR, being the employed Modbus agreement of BAS with the employed transport protocol conversion of the VRF of each producer.But also have some to adopt other modes that are used to monitor and show above-mentioned VRF running status of non-Modbus agreement, when running into this situation, then above-mentioned protocol conversion apparatus since function singleness then can't be suitable for.
The utility model content
In view of this, the main purpose of the utility model is, a kind of protocol conversion apparatus that air-conditioning detects that is applied to is provided.When exporting host computer to, can also realize that the operating state signal of central air-conditioning group adopts other modes to export, realize the durability of protocol conversion apparatus function through the air conditioner operation parameters that is received is carried out protocol conversion.
A kind of protocol conversion apparatus that the utility model provided, the slave computer communication unit that comprise control unit, is connected respectively with control unit, upper machine communication unit and state output unit;
The central air-conditioning group that said control unit is used for being connected with the slave computer communication unit and with host computer that the upper machine communication unit is connected between the protocol conversion of message transmission; And; Operational factor according to the central air-conditioning group that receives generates the operating state signal of representing the central air-conditioning group, exports through the state output unit.
By last, export host computer to and operational factor is generated the operating state signal of representing the central air-conditioning group through the air conditioner operation parameters that is received being carried out protocol conversion, make it be applicable to different requirement of engineering, increase its applicability.
Optional, also comprise toggle switch, be connected with control unit, said toggle switch comprises the function dial-up, is used to the difference table of selecting control unit to store, said some table stores the unlike signal definition; With
The address dial-up is used for selecting the address of the different central air-conditioning of central air-conditioning group that control unit stores.
By last, through being set, the function dial-up realizes being applicable to the difference table, through the address dial-up is set, select any central air-conditioning in the central air-conditioning group, realize its control.
Optional, said control unit comprises that model is the circuit of MC9S08AW60 chip.
Optional, said slave computer communication unit comprises RS485 communication module and Homebus communication module.
By last, make it be applicable to different requirement of engineering through different communication modules, increase its applicability.
Optional, said RS485 communication module comprises that model is the circuit of 65LBC184 chip;
Said Homebus communication module comprises that model is the circuit of MM1007 chip.
Optional, said upper machine communication unit comprises that model is the circuit of 65LBC184 chip.
Optional, said state output unit comprises that model is the circuit realization of ULN2803A chip.
Preferable, also comprise switch switching unit, be connected with control unit, be used to import the instruction of the switching of controlling the central air-conditioning group.
By last,, realize being convenient to control the switching of central air-conditioning group through switch switching unit is set.
Description of drawings
Fig. 1 is the principle schematic that comprises the utility model protocol conversion apparatus;
Fig. 2 is the utility model RS485 communication module circuit diagram;
Fig. 3 is the utility model Homebus communication module circuit diagram;
Fig. 4 is the utility model control unit circuit figure;
Fig. 5 falls upper machine communication unit and state output unit circuit diagram for the utility model;
Fig. 6 is the utility model power switch circuit figure;
Fig. 7 is the utility model switch switching unit circuit diagram.
Embodiment
Below in conjunction with accompanying drawing 1-7 the said protocol conversion apparatus of the utility model is described.As shown in Figure 1 having comprised: central air-conditioning group 10 is used to the host computer 30 that receives the operational factor of central air-conditioning group 10 and assign control command and the said protocol conversion apparatus 20 that is connected between central air-conditioning group 10 and the host computer 30 of the utility model.
Wherein, slave computer communication unit 201 is used to receive the operational factor of central air-conditioning group 10, and is used for control command and switch switching command that the civilian said host computer 30 in back is assigned are sent to central air-conditioning group 10.
Said slave computer communication unit 201 comprises RS485 communication module and Homebus communication module.As shown in Figure 2, said RS485 communication module is through comprising that model is the circuit realization of 65LBC184 chip.The A6 of input port in the same way of 65LBC184 chip is connected with the signal transmission port of air-conditioning unit 10 respectively with reverse input end mouth B7, to receive the operational factor of air-conditioning unit 10.Above-mentioned operational factor exports control unit 202 to through the data-out port DI4 of 65LBC184 chip.In addition, the RO1 port of 65LBC184 chip receives control command and the switch switching command that control unit 202 is assigned, and exports air-conditioning unit 10 to.
The Homebus communication module is through comprising that model is the circuit realization of MM1007 chip; As shown in Figure 3; Data Receiving port IN1, the IN2 of MM1007 chip are connected with central air-conditioning group 10; Receive operational factor, above-mentioned operational factor exports control unit 202 to through the data-out port D_OUT of MM1007 chip.In addition, the D_INA of MM1007 chip, D_INB port are connected with control unit 202, are used to receive control command or the switch switching command that control unit 202 is assigned, and above-mentioned instruction is by D_OUTA, D_OUTB port transmission to the central air-conditioning group 10 of MM1007 chip.
Said control unit 202 is through comprising that model is the circuit realization of MC9S08AW60 chip.The MC9S08AW60 chip is connected with the RS485 communication module with data transmission port TXD2, RXD2 through level output end mouth PTC4.Wherein, the driver of the 65LBC184 chip of level output end mouth PTC4 and RS485 communication module enables control end DE3 and receiver enables control port RE2.When the level output end mouth PTC4 of MC9S08AW60 chip is output as high level; The 65LBC184 chip uses as output driver, and the A6 of input port in the same way through the 65LBC184 chip is loaded into (soon control command or switch switching command transfer to central air-conditioning group 10) on the RS485 bus with reverse input end mouth B7 from the data-out port TXD2 of MC9S08AW60 chip output signal; Otherwise when the level output end mouth PTC4 of MC9S08AW60 chip is output as low level; The 65LBC184 chip uses as signal receiver, and the MC9S08AW60 chip reads the data from the RS485 bus (promptly receiving the operational factor of central air-conditioning group 10) that received through the 65LBC184 chip.
Said MC9S08AW60 chip is through the MM1007 chip links in port PTF0～PTF4 and the Homebus communication module.Wherein, the port PTF0～PTF2 of MC9S08AW60 chip is used to receive operational factor and the output control command or the switch switching command of central air-conditioning group 10, judges the polarity and the detection signal transmission time sequence of signal transmission through port PTF3, PTF4.
Carry out protocol conversion behind the operational factor coding of control unit 202 reception central air-conditioning groups 10, and transfer to host computer 30 through upper machine communication unit 206.As shown in Figure 5, upper machine communication unit 406 is through comprising that model is the circuit realization of 65LBC184 chip.The 65LBC184 chip is connected with MC9S08AW60 chip in the control unit 202 through RO1, DI4 port, is connected with host computer 30 through 6A, 7B port.Wherein, said 6A, 7B port are connected to the civilian said binding post in back.
In addition, said control unit 202 also is used for the operational factor of said central air-conditioning group 10 is generated the operating state signal of expression central air-conditioning group 10.Said operating state signal is through civilian said state output unit 203 outputs in back.
Said state output unit 203 is through comprising that model is the circuit realization of ULN2803A chip.The IN1 of said ULN2803A chip～IN8 port is connected with the PAT0～PAT6 port and the PTG2 port of MC9S08AW60 chip in the control unit 202 respectively.The OUT6 of ULN2803A chip～OUT8 port connects binding post after connecting a relay respectively, through binding post output services state, halted state and malfunction.
In addition, said binding post also is used for the switch command of receiving key switch unit 204, and said switch command is used to control the switching of all central air-conditioning groups 10.Switch command transfers to protocol conversion module through the instruction transmission circuit.As shown in Figure 7.Said switch switching unit 204 is a two-way; One the tunnel is used to assign the instruction of control central air-conditioning group 10 standard-sized sheets; Another road is used to assign the instruction of control central air-conditioning group 10 complete shut-downs, and the two-way circuit is identical, realizes through the circuit that comprises photosensitive coupler respectively; Two photosensitive coupler one ends connect QG, the QK port of binding post, the PT3 of MC9S08AW60 chip, PT4 port in the other end connection protocol modular converter respectively.
Preferable, also comprise toggle switch, said toggle switch comprises function dial-up and address dial-up, all with control unit 202 in the MC9S08AW60 chip be connected.Wherein, the internal register of MC9S08AW60 chip stores at least two cover difference tables, promptly representes the unlike signal definition of MC9S08AW60 chip port.Select the switching point table through the function dial-up, be applicable to the central air-conditioning of different vendor thus, make its operational factor carry out protocol conversion through control unit 202.In addition, the address dial-up is used for selecting the concrete numbering of central air-conditioning group 10 central air-conditioning, realizes its independent control.The concrete numbering of said central air-conditioning is stored in the internal register in the MC9S08AW60 chip in the control unit 202 equally.
As shown in Figure 6, mains switch 205 is used for to above-mentioned each unit power supply, is the circuit realization of TNY274P chip through comprising model.Outside 220V power supply is that the transformer step-down of E16005 is 12V through model.The feedback port BP of TNY274P chip detects magnitude of voltage, and carries out duty cycle adjustment through the EN/UV port.
The above is merely the preferred embodiment of the utility model;, in a word, not all within the spirit and principle of the utility model in order to restriction the utility model; Any modification of being done, be equal to replacement, improvement etc., all should be included within the protection range of the utility model.
Claims (9)
1. a protocol conversion apparatus is characterized in that, comprises control unit (202), the slave computer communication unit (201) that is connected with control unit (202) respectively, upper machine communication unit (206) and state output unit (203);
The central air-conditioning group (10) that said control unit (202) is used for being connected with slave computer communication unit (201) and with host computer (30) that upper machine communication unit (206) are connected between the protocol conversion of message transmission; And; Operational factor according to the central air-conditioning group (10) that receives generates the operating state signal of representing central air-conditioning group (10), exports through state output unit (203).
2. protocol conversion apparatus according to claim 1 is characterized in that, also comprises toggle switch; Be connected with control unit (202); Said toggle switch comprises the function dial-up, is used to the difference table of selecting control unit (202) to be stored, and said some table stores the unlike signal definition; With
The address dial-up is used for selecting the address of the different central air-conditioning of central air-conditioning group (10) that control unit (202) stored.
3. protocol conversion apparatus according to claim 1 is characterized in that, said control unit (202) comprises that model is the circuit of MC9S08AW60 chip.
4. protocol conversion apparatus according to claim 1 is characterized in that, said slave computer communication unit (201) comprises RS485 communication module and Homebus communication module.
5. protocol conversion apparatus according to claim 4 is characterized in that, said RS485 communication module comprises that model is the circuit of 65LBC184 chip;
Said Homebus communication module comprises that model is the circuit of MM1007 chip.
6. protocol conversion apparatus according to claim 2 is characterized in that, said control unit (202) comprises that model is the circuit of MC9S08AW60 chip.
7. protocol conversion apparatus according to claim 2 is characterized in that, said upper machine communication unit (206) comprises that model is the circuit of 65LBC184 chip.
8. protocol conversion apparatus according to claim 2 is characterized in that, said state output unit (203) comprises that model is the circuit realization of ULN2803A chip.
9. protocol conversion apparatus according to claim 1 is characterized in that, also comprises switch switching unit (204), is connected with control unit (202), is used for the instruction of the switching of input control central air-conditioning group (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201172317U CN202535392U (en) | 2012-03-26 | 2012-03-26 | Protocol conversion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201172317U CN202535392U (en) | 2012-03-26 | 2012-03-26 | Protocol conversion device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202535392U true CN202535392U (en) | 2012-11-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201172317U Expired - Lifetime CN202535392U (en) | 2012-03-26 | 2012-03-26 | Protocol conversion device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109284244A (en) * | 2018-01-24 | 2019-01-29 | 上海云统信息科技有限公司 | A kind of off-line data synchronization storage system |
| CN111023262A (en) * | 2019-12-19 | 2020-04-17 | 青岛海信日立空调系统有限公司 | Modbus protocol conversion device and multi-online centralized control system |
| CN114280972A (en) * | 2021-11-11 | 2022-04-05 | 宝星智能科技(上海)有限公司 | Controller equipment for communication base station switch power supply |
-
2012
- 2012-03-26 CN CN2012201172317U patent/CN202535392U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109284244A (en) * | 2018-01-24 | 2019-01-29 | 上海云统信息科技有限公司 | A kind of off-line data synchronization storage system |
| CN111023262A (en) * | 2019-12-19 | 2020-04-17 | 青岛海信日立空调系统有限公司 | Modbus protocol conversion device and multi-online centralized control system |
| CN111023262B (en) * | 2019-12-19 | 2021-04-16 | 青岛海信日立空调系统有限公司 | Modbus protocol conversion device and multi-online centralized control system |
| CN114280972A (en) * | 2021-11-11 | 2022-04-05 | 宝星智能科技(上海)有限公司 | Controller equipment for communication base station switch power supply |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121114 |