CN202565263U - Communication adapter - Google Patents
Communication adapter Download PDFInfo
- Publication number
- CN202565263U CN202565263U CN 201220241990 CN201220241990U CN202565263U CN 202565263 U CN202565263 U CN 202565263U CN 201220241990 CN201220241990 CN 201220241990 CN 201220241990 U CN201220241990 U CN 201220241990U CN 202565263 U CN202565263 U CN 202565263U
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- China
- Prior art keywords
- unit
- bus
- meter
- power supply
- ttl
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
The utility model discloses a communication adapter, which comprises a DC power supply, a DC/DC module unit, an RS232-to-TTL unit, an isolating unit, a channel changeover switch, an M-BUS unit, and an RS-485 unit, wherein the DC power supply is used for supplying power for the whole machine through the DC/DC module unit; an output end of the RS232-to-TTL unit is connected with an input end of the isolating unit; and an output end of the isolating unit is connected with an input end of the RS-485 unit or with an input end of the M-BUS unit through the channel changeover switch. According to the communications adapter, a portable meter reading system can be formed by the communication adapter, a handheld meter reading device, a socket and master station software, and the system can conduct movable-type meter reading in an inserting manner, namely data of a plurality of sets of M-BUS or RS-485 water meters can be acquired by one communication adapter, thereby the communications adapter is suitable for concentrated mounting and meter reading of larger number of M-BUS or RS-485 water meters.
Description
Technical field
The utility model relates to a kind of communications adapter, especially relates to the communications adapter that a kind of M-BUS of being used for and RS-485 water meter are checked meter.
Background technology
Existing M-BUS and RS-485 water meter are all installed concentratedly; Mode through being directly connected to hard-wired carrier acquisition device is carried out centralized automatic meter-reading; The sketch map of checking meter is seen Fig. 1: it is through the GPRS/CDMA/ Ethernet concentrator to be issued meter reading instruction by main website that prior art is checked meter, and concentrator conveys to the carrier acquisition device with instruction after receiving instruction, and the carrier acquisition device is checked meter; Check meter and pass data back main website through carrier acquisition device and concentrator after accomplishing, main website handles data again.The defective that this meter reading method exists is: the carrier acquisition device load capacity of general M-BUS or RS-485 water meter is more weak; Load capacity has only 4; Check meter then inapplicable for installing concentratedly of more M-BUS or RS-485 water meter; Along with the universalness of high buildings and large mansions, the situation that a large amount of M-BUS or RS-485 water meter are installed concentratedly is more and more, therefore how to realize that it is present problem demanding prompt solution that installing concentratedly of more M-BUS or RS-485 water meter checked meter.
The utility model content
The purpose of the utility model is to provide a kind of communications adapter, to solve the problem of checking meter of installing concentratedly of a fairly large number of M-BUS or RS-485 water meter.
The communications adapter that the utility model provides; Comprise DC power supply, DC/DC modular unit, RS232 commentaries on classics TTL unit, isolated location, passage diverter switch, M-BUS unit, RS-485 unit; DC power supply is that complete machine provides power supply through the DC/DC modular unit; Said RS232 changes TTL unit output and is connected with the isolated location input, and the isolated location output is connected with RS-485 unit input through the passage diverter switch, perhaps is connected with M-BUS unit input.
In order to make system when not working, can realize zero-power, prolong the useful life of DC power supply, said DC power supply is connected through system switching with the DC/DC modular unit.
M-BUS need be connected with M-BUS or RS-485 water meter through a socket with RS-485 unit output when the utility model used, and RS232 changes the external handheld reading meter device of TTL unit input.During work: handheld reading meter device sends meter reading instruction; Meter reading instruction is changeed TTL unit, isolated location and selected M-BUS of passage diverter switch or RS-485 unit through RS232; Be transferred to the M-BUS or the RS-485 water meter of socket end; M-BUS that the response of M-BUS or RS-485 water meter, response signal are selected through the passage diverter switch again or RS-485 unit, isolated location, RS232 change the TTL unit, are transferred to handheld reading meter device; Handheld reading meter device reads response signal, and artificial then derived data is also handled.
The beneficial effect of the utility model:
1, the utility model can be formed portable kilowatt meter reading-out system with handheld reading meter device, socket and main website software; And can make this system carry out movable type to check meter with the mode of pegging graft; Therefore promptly just can gather the data of many M-BUS or RS-485 water meter, can be applicable to that M-BUS of a greater number or installing concentratedly of RS-485 water meter check meter with a communications adapter;
2, the utility model can select M-BUS or RS-485 communication modes to carry out work owing to have the passage diverter switch, so handheld reading meter device can switch between M-BUS and RS-485 water meter and checks meter;
3, the utility model adopts optocoupler and insulating power supply to carry out electrical isolation because M-BUS unit wherein, RS-485 unit and RS232 change between the TTL element circuit, therefore can protect handheld reading meter device.
4, the portable kilowatt meter reading-out system of the utility model composition is compared with existing reading technique, only needs a communications adapter, a socket, and therefore a handheld reading meter device provides cost savings.
Description of drawings
Fig. 1 is the prior art sketch map of checking meter.
Fig. 2 is the circuit structure diagram of the utility model.
Fig. 3 is the utility model sketch map of checking meter.
Embodiment
As can be seen from Figure 2 the utility model is made up of DC power supply, DC/DC modular unit, RS232 commentaries on classics TTL unit, isolated location, passage diverter switch, M-BUS unit, RS-485 unit; DC power supply is connected with the DC/DC modular unit through system switching; Said RS232 changes TTL unit output and is connected with the isolated location input; The isolated location output is connected with RS-485 unit input through the passage diverter switch, perhaps is connected with M-BUS unit input.M-BUS and RS-485 unit output are used for external socket.During work: handheld reading meter device sends meter reading instruction; Meter reading instruction is changeed M-BUS or the RS-485 unit that TTL unit, isolated location and passage diverter switch are selected through RS232; Be transferred to socket, socket is connected with M-BUS or RS-485 water meter through a protective circuit, and M-BUS or RS-485 water meter receive meter reading instruction and response; M-BUS that response signal is selected through the passage diverter switch again or RS-485 unit, isolated location, RS232 change the TTL unit; Be transferred to handheld reading meter device, handheld reading meter device reads response signal, and artificial then derived data is also handled.Whole system is by DC power supply; Be divided into four-way power supply behind the DC power supply process DC/DC modular unit; Be respectively DC12V, DC5V, DC16V, DC30V, wherein DC5V is that RS232 changes TTL unit, RS-485 chip power supply; DC12V is that RS-485 is bus-powered, and DC16V and DC30V are respectively M-BUS unit and bus-powered.
Fig. 3 has reacted the working method of the utility model; During work: handheld reading meter device sends meter reading instruction; Meter reading instruction is transferred to the M-BUS or the RS-485 water meter of socket end through communications adapter, M-BUS or the response of RS-485 water meter, and response signal is transferred to handheld reading meter device through communications adapter; Read by handheld reading meter device, artificial then derived data is also handled.
Claims (2)
1. communications adapter; It is characterized in that comprising DC power supply, DC/DC modular unit, RS232 commentaries on classics TTL unit, isolated location, passage diverter switch, M-BUS unit, RS-485 unit; DC power supply is that complete machine provides power supply through the DC/DC modular unit; Said RS232 changes TTL unit output and is connected with the isolated location input, and the isolated location output is connected with RS-485 unit input through the passage diverter switch, perhaps is connected with M-BUS unit input.
2. communications adapter according to claim 1 is characterized in that said DC power supply is connected through system switching with the DC/DC modular unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220241990 CN202565263U (en) | 2012-05-28 | 2012-05-28 | Communication adapter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220241990 CN202565263U (en) | 2012-05-28 | 2012-05-28 | Communication adapter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202565263U true CN202565263U (en) | 2012-11-28 |
Family
ID=47214865
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220241990 Expired - Lifetime CN202565263U (en) | 2012-05-28 | 2012-05-28 | Communication adapter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202565263U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103177554A (en) * | 2013-03-27 | 2013-06-26 | 河南新天科技股份有限公司 | Portable rapid meter-reading method |
| CN106384497A (en) * | 2016-11-07 | 2017-02-08 | 郑州华力信息技术有限公司 | Portable electric operation and maintenance carrier meter reading adapter |
| CN106877856A (en) * | 2016-12-28 | 2017-06-20 | 深圳市展恒电子有限公司 | For the slave station interface arrangement of MBUS |
| CN109360404A (en) * | 2018-12-13 | 2019-02-19 | 湖南常德牌水表制造有限公司 | A kind of M-Bus main website multi-channel intelligent meter reading remote transmission device and method |
| CN109754591A (en) * | 2018-12-21 | 2019-05-14 | 湖南常德牌水表制造有限公司 | A kind of kilowatt meter reading-out system and meter register method |
-
2012
- 2012-05-28 CN CN 201220241990 patent/CN202565263U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103177554A (en) * | 2013-03-27 | 2013-06-26 | 河南新天科技股份有限公司 | Portable rapid meter-reading method |
| CN106384497A (en) * | 2016-11-07 | 2017-02-08 | 郑州华力信息技术有限公司 | Portable electric operation and maintenance carrier meter reading adapter |
| CN106877856A (en) * | 2016-12-28 | 2017-06-20 | 深圳市展恒电子有限公司 | For the slave station interface arrangement of MBUS |
| CN106877856B (en) * | 2016-12-28 | 2021-02-02 | 深圳市展恒电子有限公司 | Slave station interface device for MBUS |
| CN109360404A (en) * | 2018-12-13 | 2019-02-19 | 湖南常德牌水表制造有限公司 | A kind of M-Bus main website multi-channel intelligent meter reading remote transmission device and method |
| CN109360404B (en) * | 2018-12-13 | 2023-08-15 | 湖南常德牌水表制造有限公司 | Multichannel intelligent meter reading remote transmission device and method for M-Bus master station |
| CN109754591A (en) * | 2018-12-21 | 2019-05-14 | 湖南常德牌水表制造有限公司 | A kind of kilowatt meter reading-out system and meter register method |
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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: 20121128 |