CN203149559U - Multi-slave-structure MBUS host machine device - Google Patents
Multi-slave-structure MBUS host machine device Download PDFInfo
- Publication number
- CN203149559U CN203149559U CN 201320121282 CN201320121282U CN203149559U CN 203149559 U CN203149559 U CN 203149559U CN 201320121282 CN201320121282 CN 201320121282 CN 201320121282 U CN201320121282 U CN 201320121282U CN 203149559 U CN203149559 U CN 203149559U
- Authority
- CN
- China
- Prior art keywords
- module
- bus
- mbus
- slave
- controller
- Prior art date
- 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 - Fee Related
Links
Images
Landscapes
- Small-Scale Networks (AREA)
Abstract
The utility model provides a multi-slave-structure MBUS host machine device which comprises a power supply module, a control module, a receiving and sending module, a bus load detecting and analyzing module, a bus level regulating module and a remote communication module. The receiving and sending module comprises a receiving circuit module and a sending circuit module, MBUS communication signals sent by a slave heat meter are transmitted to a controller and a bus load analyzer through the receiving circuit module and the bus load detecting and analyzing module, and the signals are transmitted to the slave heat meter through the sending circuit module and the bus level regulating module after being processed and analyzed through the controller and the bus load analyzer. The power supply module is used for supplying power for the whole device, the controller is respectively connected with a state displaying element and an address jumper, the state displaying element is used for displaying the current state, the address jumper is used for setting the address of the device, and an Ethernet controller is communicated with the an Ethernet interchanger through an Ethernet interface. The device fundamentally resolves the problem that changes of the slave load influence output of bus level.
Description
Technical field
The utility model relates to a kind of many from structure MBUS host apparatus, is used for long-distance meter-reading system.
Background technology
In recent years, along with popularizing gradually of hotlist, based on the application of M-BUS bus long-distance meter-reading system more and more widely.How to refer to from structure MBUS host apparatus: gather the hotlist data in a heat supply (cooling) regional extent, and deliver to remote host by the MBUS host apparatus, by remote host MBUS main frame and hotlist in this zone are carried out control operation.Because communication cable is generally long, and certain resistance is arranged, and for the MBUS main frame, requiring the slave load number that connects is 0 to 250, because the slave load number is different thereby cause dividing potential drop difference on communication cable, and then has influence on the level on the slave hotlist, influences communication quality.
Summary of the invention
The purpose of this utility model provides a kind of many from structure MBUS host apparatus, has fundamentally solved because the slave load variations influences bus level and has exported problem.
The technical solution of the utility model: a kind of many from structure MBUS host apparatus, how the slave hotlist passes through from the MBUS host apparatus, the MBUS bus is connected on Ethernet switch and the computing machine, should many comprise supply module from the MBUS host apparatus, control module, transceiver module, bus load detects and analysis module, bus level adjustment module and telecommunication module, wherein transceiver module comprises receiving circuit module and transtation mission circuit module, the MBUS communication signal that the slave hotlist sends detects with analysis module via receiving circuit module and bus load and is sent to controller and bus load analyzer, after the Treatment Analysis of above-mentioned signal through controller and bus load analyzer, be sent to the slave hotlist by transtation mission circuit module and bus level adjustment module again, supply module is used for giving whole device power supply, controller respectively with the state display element that be used for to show current state, be used for setting the address wire jumper connection of this unit address, ethernet controller is via Ethernet interface and Ethernet switch communication.
Described receiving circuit module comprises sampling resistor Rs, differential amplifier and comparer, and the MBUS communication signal that the slave hotlist sends is sent in the controller of control module via sampling resistor Rs, differential amplifier and comparer.
Described bus load detects with analysis module and comprises sampling resistor Rs, differential amplifier, A/D converter and bus load analyzer, the MBUS communication signal that the slave hotlist sends is sent in the bus load analyzer of control module via sampling resistor Rs, differential amplifier, A/D converter, provides load situation data to controller.
Described transtation mission circuit module comprises not gate, switch, addition amplifying circuit and driving circuit, is used for to slave hotlist transmission processing and the MBUS communication signal after analyzing.
Described bus level adjustment module comprises system initialization parameter, bus level regulator and D/A converter, and D/A converter is connected on the addition amplifying circuit of transtation mission circuit module.
Adopt in-phase adder in the described addition amplifying circuit.
Described driving circuit adopts and expands stream triode Q, and the emitter-base bandgap grading that expands stream triode Q is connected to the slave hotlist.
Described supply module utilizes the AC-DC converter that the 220V alternating voltage is converted to DC voltage, and the DC voltage part after the conversion directly is that MBUS is bus-powered, and another part electric energy is the internal system circuit supply by the DC-DC converter.
The beneficial effects of the utility model: 1. the bus load that adopts of the utility model detects and analysis module, for bus level control provides criterion, judge load level, guarantee that the slave hotlist can be met the communication level of M-BUS bus standard by bus, this module also can will be analyzed data upload to remote host simultaneously, and provides more senior control to use by remote host; 2. the bus level adjustment module is to read bus load from the bus load analyzer, and coupling system initial parameter computation host is to the ideal level values of bus output, and then offer the rational voltage reference value of transtation mission circuit module, finally make the transtation mission circuit module send suitable level to bus, thereby guaranteed to obtain geostationary communication level at the slave end; 3. the utility model designed receiving circuit, got rid of that level on the sampling resistor that load variations causes changes and the problem that causes the M-BUS miscommunication; 4. the transtation mission circuit after improving has improved the load capacity of driving circuit, has solved the problem of transtation mission circuit driving force deficiency.
Description of drawings
Fig. 1 is topological diagram of the present utility model.
Fig. 2 is theory diagram of the present utility model.
Fig. 3 is the schematic diagram of receiving circuit module.
Fig. 4 is the schematic diagram of transtation mission circuit module.
Embodiment
As depicted in figs. 1 and 2, a kind of many from structure MBUS host apparatus, how the slave hotlist passes through from the MBUS host apparatus, the MBUS bus is connected on Ethernet switch and the computing machine, should many comprise supply module from the MBUS host apparatus, control module, transceiver module, bus load detects and analysis module, bus level adjustment module and telecommunication module, wherein transceiver module comprises receiving circuit module and transtation mission circuit module, the MBUS communication signal that the slave hotlist sends detects with analysis module via receiving circuit module and bus load and is sent to controller 3 and bus load analyzer 9, after the Treatment Analysis of above-mentioned signal through controller 3 and bus load analyzer 9, be sent to the slave hotlist by transtation mission circuit module and bus level adjustment module again, supply module is used for giving whole device power supply, controller 3 respectively with the state display element 4 that be used for to show current state, be used for setting address wire jumper 5 connections of this unit address, ethernet controller 18 is via Ethernet interface 19 and Ethernet switch communication.
Above-mentioned module principle of work is as follows: the M-BUS receiving circuit module is by comparer 6, differential amplifier 7, and current sampling resistor 8 is formed, and is used for receiving the M-BUS communication signal that the slave hotlist sends.Bus load detects with analysis module by comparer 6, differential amplifier 7, current sampling resistor 8, bus load analyzer 9 and A/D converter 10 are formed, be used for providing load situation data, this load situation data can pass to computing machine to carry out more senior analysis by Ethernet, also can be read by the bus level regulator, for bus level control provides the judgement signal.The bus level adjustment module is by bus level regulator 11, D/A converter 12, and system initialization parameter 15 is formed, and this module detects with analysis module according to bus load load situation data is provided, and makes controller export rational bus level signal.M-BUS transtation mission circuit module is by not gate 16, and switch 17(switch is the triode of collector band pull-up resistor), summing amplifier 13(is the homophase input) and driving circuit 14 compositions, this module is used for sending the M-BUS data-signal to the slave hotlist.State indicator elment 4 is device LED, is used for display device work at present state, and address wire jumper 5 is used for setting the address of this device, and controller 3 is set this machine address accordingly.This device utilizes ethernet controller 18 and Ethernet interface 19 to carry out communication between device.
Described receiving circuit module comprises sampling resistor Rs, differential amplifier 7 and comparer 6, and the MBUS communication signal that the slave hotlist sends is sent in the controller 3 of control module via sampling resistor Rs, differential amplifier 7 and comparer 6.Because sampling resistor Rs is connected between power supply and the driving circuit 14, so the pressure drop on the sampling resistor Rs does not influence the bus level when sending fully; Owing to adopt differential amplification mode, can shield since the fluctuation of power supply to receiving the influence of current signal.
As shown in Figure 3, receiving circuit module sampling resistor Rs sends current signal by comparer 6 backs that differential amplifier 7 is linked into the capacitor branch road to controller 3, because slave hotlist (load) is a kind of current pulse sequence to the data code flow that controller 3 sends, receive the current value presentation logic " 1 " that signal is used 1.5mA usually for M-BUS, when transmission " 0 ", by hotlist (load) current value is risen to 11～20 mA.It is after preventing that sampling resistor Rs power supply voltage fluctuates that the design adopts the purpose of differential amplifier, influences comparer 6 outputs, can make the received current signal produce mistake; And the negative terminal level signal of comparer 6 is by differentiating capacity earth, such circuit structure has guaranteed before and after the voltage constantly, the current signal of sampling resistor changes when changing (be load), comparer 6 will be not can malfunction, and having only voltage (being the transtation mission circuit output level) when sampling resistor when changing, comparer 6 just has the switching of the output state of level.
Described bus load detects with analysis module and comprises sampling resistor Rs, differential amplifier 7, A/D converter 10 and bus load analyzer 9, the MBUS communication signal that the slave hotlist sends is sent in the bus load analyzer 9 of control module via sampling resistor Rs8, differential amplifier 7, A/D converter 10, provides load situation data to controller.This module is by after gathering the current signal of differential amplifier 7 outputs in the receiving circuit, send to bus load analyzer 9 in the controller 3 through A/D converter 10, judge controller 3 hotlist of being with (load) level whereby, and generation load situation data, load situation data on the one hand can be led to Ethernet and be passed to host computer, with the more senior analysis of row, as the fault diagnosis etc., can be read by the bus level regulator on the one hand, and then carry out bus level control.Because this module is based on software development, therefore promoted the reliability of controller 3 on the basis that does not need to increase hardware cost.
As shown in Figure 4, described transtation mission circuit module comprises not gate 16, switch 17, addition amplifying circuit 13 and driving circuit 14, is used for to slave hotlist transmission processing and the MBUS communication signal after analyzing.The level signal of the data that controller 3 sends and power module 21 outputs has been modulated behind in-phase adder and has been become M-BUS fiduciary level signal, that is: 24V represents level signal " 0 ", 36V represents level signal " 1 ", again through expanding stream triode purpose for strengthening load (hotlist) levels of current, improve the transtation mission circuit carrying load ability, R1, R2 and R4 parameter are determined by controller 3 output signals and totalizer.
Described bus level adjustment module comprises system initialization parameter 15, bus level regulator 11 and D/A converter 12, and D/A converter 12 is connected on the addition amplifying circuit 13 of transtation mission circuit module.Bus load analyzer 9 reads bus load, and coupling system initiation parameter 15, computation host is to the ideal level values of bus output, and then offer the rational voltage reference value of transtation mission circuit module, finally make the transtation mission circuit module send suitable level to bus, thereby guaranteed to obtain geostationary communication level at the slave end.The use of bus level adjustment module in this device further improved the carrying load ability of this device, improved the reliability of system's communication under the heavy duty situation.
Adopt in-phase adder in the described addition amplifying circuit 13, carry out voltage amplification and can reach the required fiduciary level of M-BUS because the utilization of in-phase adder makes the transtation mission circuit module need not the next stage power amplifier.
Described driving circuit 14 adopts and expands stream triode Q, and the emitter-base bandgap grading that expands stream triode Q is connected to the slave hotlist, expands the carrying load ability that the stream triode has promoted transtation mission circuit, and load variations does not influence bus level output.
Described supply module utilizes AC-DC converter 1 that the 220V alternating voltage is converted to DC voltage, and the DC voltage part after the conversion directly is that MBUS is bus-powered, and another part electric energy is the internal system circuit supply by DC-DC converter 2.
Claims (8)
- More than one kind from structure MBUS host apparatus, how the slave hotlist passes through from the MBUS host apparatus, the MBUS bus is connected on Ethernet switch and the computing machine, it is characterized in that: how this comprises supply module from the MBUS host apparatus, control module, transceiver module, bus load detects and analysis module, bus level adjustment module and telecommunication module, wherein transceiver module comprises receiving circuit module and transtation mission circuit module, the MBUS communication signal that the slave hotlist sends detects with analysis module via receiving circuit module and bus load and is sent to controller (3) and bus load analyzer (9), after the Treatment Analysis of above-mentioned signal through controller (3) and bus load analyzer (9), be sent to the slave hotlist by transtation mission circuit module and bus level adjustment module again, supply module is used for giving whole device power supply, controller (3) respectively with the state display element (4) that be used for to show current state, be used for setting address wire jumper (5) connection of this unit address, ethernet controller (18) is via Ethernet interface (19) and Ethernet switch communication.
- 2. as claimed in claim 1 a kind of many from structure MBUS host apparatus, it is characterized in that: described receiving circuit module comprises sampling resistor Rs(8), differential amplifier (7) and comparer (6), the MBUS communication signal that the slave hotlist sends is via sampling resistor Rs(8), differential amplifier (7) and comparer (6) be sent in the controller (3) of control module.
- 3. as claimed in claim 1 a kind of many from structure MBUS host apparatus, it is characterized in that: described bus load detects with analysis module and comprises sampling resistor Rs(8), differential amplifier (7), A/D converter (10) and bus load analyzer (9), the MBUS communication signal that the slave hotlist sends is via sampling resistor Rs(8), differential amplifier (7), A/D converter (10) be sent in the bus load analyzer (9) of control module, provides load situation data to controller.
- 4. as claimed in claim 1 a kind of many from structure MBUS host apparatus, it is characterized in that: described transtation mission circuit module comprises not gate (16), switch (17), addition amplifying circuit (13) and driving circuit (14), is used for to slave hotlist transmission processing and the MBUS communication signal after analyzing.
- 5. as claimed in claim 1 a kind of many from structure MBUS host apparatus, it is characterized in that: described bus level adjustment module comprises system initialization parameter (15), bus level regulator (11) and D/A converter (12), and D/A converter (12) is connected on the addition amplifying circuit (13) of transtation mission circuit module.
- 6. as claimed in claim 4 a kind of many from structure MBUS host apparatus, it is characterized in that: adopt in-phase adder in the described addition amplifying circuit (13).
- 7. as claimed in claim 4 a kind of many from structure MBUS host apparatus, it is characterized in that: described driving circuit (14) adopts and expands stream triode Q, and the emitter-base bandgap grading that expands stream triode Q is connected to the slave hotlist.
- 8. as claimed in claim 1 a kind of many from structure MBUS host apparatus, it is characterized in that: described supply module utilizes AC-DC converter (1) that the 220V alternating voltage is converted to DC voltage, DC voltage part after the conversion directly is that MBUS is bus-powered, and another part electric energy is the internal system circuit supply by DC-DC converter (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320121282 CN203149559U (en) | 2013-03-18 | 2013-03-18 | Multi-slave-structure MBUS host machine device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320121282 CN203149559U (en) | 2013-03-18 | 2013-03-18 | Multi-slave-structure MBUS host machine device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203149559U true CN203149559U (en) | 2013-08-21 |
Family
ID=48977071
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320121282 Expired - Fee Related CN203149559U (en) | 2013-03-18 | 2013-03-18 | Multi-slave-structure MBUS host machine device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203149559U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108241079A (en) * | 2016-12-23 | 2018-07-03 | 艾德克斯电子（南京）有限公司 | Electronic load system and parallel operation method |
| CN109302194A (en) * | 2018-11-29 | 2019-02-01 | 苏州东剑智能科技有限公司 | Mbus host receives circuit |
| 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 |
| CN111489542A (en) * | 2020-03-24 | 2020-08-04 | 宁波水表(集团)股份有限公司 | Receiving circuit of M-Bus instrument Bus |
| TWI839995B (en) * | 2022-12-05 | 2024-04-21 | 盛群半導體股份有限公司 | Two-bus device |
-
2013
- 2013-03-18 CN CN 201320121282 patent/CN203149559U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108241079A (en) * | 2016-12-23 | 2018-07-03 | 艾德克斯电子（南京）有限公司 | Electronic load system and parallel operation method |
| CN108241079B (en) * | 2016-12-23 | 2020-06-05 | 艾德克斯电子（南京）有限公司 | Electronic load system and parallel operation method |
| CN109302194A (en) * | 2018-11-29 | 2019-02-01 | 苏州东剑智能科技有限公司 | Mbus host receives circuit |
| CN109302194B (en) * | 2018-11-29 | 2023-10-20 | 苏州东剑智能科技有限公司 | Mbus host receiving circuit |
| 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 |
| CN111489542A (en) * | 2020-03-24 | 2020-08-04 | 宁波水表(集团)股份有限公司 | Receiving circuit of M-Bus instrument Bus |
| TWI839995B (en) * | 2022-12-05 | 2024-04-21 | 盛群半導體股份有限公司 | Two-bus device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203149559U (en) | Multi-slave-structure MBUS host machine device | |
| CN103926862B (en) | The means of communication of micro energy lose M-bus slave terminal circuits for intelligence instrument communication | |
| CN103546114B (en) | Circuit according to pull-up voltage in the pull-up Voltage Cortrol bus of equipment and method thereof | |
| CN203324975U (en) | Serial communication debugging tool | |
| CN206975450U (en) | A kind of mbus circuits of opto-electrical direct reader | |
| CN105160862A (en) | M-BUS (METER-BUS) slave communication circuit | |
| CN203435006U (en) | Bus isolator | |
| CN104077260B (en) | A kind of concentrator M BUS host communication interface arrangements | |
| CN201490999U (en) | Modbus protocol-based current output system | |
| CN203520392U (en) | Communication circuit for electronic exploration detonator | |
| CN103507658B (en) | Battery-driven car and bus control system thereof | |
| CN105607542A (en) | Output interface equipment | |
| CN202025203U (en) | Feeding type communication circuit | |
| CN103888070A (en) | Remote monitor type photovoltaic connecting box based on voltage detection and single-wire communication protocol | |
| CN103279440A (en) | Bus communication method between single-machine modules | |
| CN203838509U (en) | Micro-power consumption M-bus slave computer end circuit for intelligent instrument communication | |
| CN204304165U (en) | Usb adapter | |
| CN203827280U (en) | Remote monitoring type photovoltaic junction box based on Hall sensor and WIFI transmission | |
| CN203012061U (en) | An automatic switching apparatus used for multiple paths of direct-current circuits | |
| CN203632640U (en) | Two-way transmission interface converting circuit | |
| CN210954703U (en) | Analog quantity signal acquisition functional module and acquisition system based on edge calculation technology | |
| CN105203232A (en) | Two-wire system pressure acquisition transmitter | |
| CN202043122U (en) | M-BUS master station receiving circuit | |
| CN205015115U (en) | Novel digital pressure transmitter | |
| CN203827275U (en) | Remote monitoring type photovoltaic junction box based on Hall sensor and one-way communication protocol |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130821 Termination date: 20210318 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |