CN209659331U - Communication data router - Google Patents

Abstract

The utility model discloses a kind of communication data router, is related to technical field of communication equipment.It include motherboard circuit, the motherboard circuit includes micro-control unit, crash automatic reset circuit, signal recognition circuit, signal packet circuit, data output interface circuit, information exchange communicating circuit.The signal recognition circuit and crash automatic reset circuit are electrically connected with micro-control unit input terminal, micro-control unit output end is electrically connected signal packet circuit input terminal, signal packet circuit output end link information interactive correspondence circuit, via information exchange communicating circuit connection signal identification circuit, 485 mouthfuls of electric energy meter of extension is improved by signal recognition circuit and microcontroller, and then to electricity-selling management device Function Extension, realize intelligent mode switching, multiple electricity management terminals are accessed by 485 communication interfaces simultaneously, improve power consumption management efficiency.

Description

Communication data router

Technical field

The utility model relates to technical field of communication equipment, more particularly, to a kind of communication data router.

Background technique

In recent years, electricity market constantly expands, and various economic conditions clients increase significantly, in addition national industry structure tune Whole, market competition is growing more intense, and enterprise shuts down and turns to happen occasionally, and economic society credit system is still not perfect in addition, be in arrears with, Electricity charge phenomenon of escaping is still quite serious, and tariff recovery risk increasingly increases " first electricity consumption, rear to pay the fees ", and there are the operation of tariff recovery Risk is unfavorable for the lean management of enterprise.Gao Yaoqu power supply more than 40 ten thousand family of client, year confession, electricity sales amount are electric up to 4,300,000,000 kilowatt hours Expense surpass 2,800,000,000 yuan, wherein industry watt-hour meter, electricity charge Jun Zhan whole district total electricity, the electricity charge 80% or more.Gao Yao power supply bureau meter reader is total 120 people are responsible for about 23,000,000 yuan of the tariff recovery amount of money per capita." pre- power purchase " comes into being, and tariff recovery is worked and is moved forward, in advance Implementing electricity charge risk prevention measure becomes the effective ways for ensuring tariff recovery rate up to 100%.It is guiding with " expense ", with " control " Management philosophy for means is to ensure the effective means of grid company effectiveness of operation.In current power equipment informatization number Change under background, analog signal will gradually be replaced by digital communication.Such as the communication between load management terminal and electric energy meter, electricity Communication between energy table and electricity sale controller, is communicated by RS485.But RS485 interface can be encountered not in field application It is enough.

Summary of the invention

The purpose of this utility model is to provide a kind of communication data routers, to realize electric energy meter same 485 Interface accesses the technical issues of load management terminal, sale of electricity Management Controller simultaneously.

A kind of communication data router provided by the utility model includes motherboard circuit, and the motherboard circuit includes micro-control Unit processed, crash automatic reset circuit, signal recognition circuit, signal packet circuit, data output interface circuit, information exchange are logical Interrogate circuit.The signal recognition circuit and crash automatic reset circuit are electrically connected with micro-control unit input terminal, are connect for handling The collection of letters number, micro-control unit output end are electrically connected signal packet circuit input terminal, and signal packet circuit output end link information is handed over Mutual communicating circuit, via information exchange communicating circuit connection signal identification circuit, by signal recognition circuit and micro-control unit Electrical connection, is handled signal, data output interface circuit is electrically connected with information exchange communicating circuit, for will finally handle Data exported.

Further, the micro-control unit further includes data processing circuit, and the data processing circuit includes a data Handle chip, the data processing chip model are as follows: STM32F030CCT6.

Further, the motherboard circuit further includes a communicating circuit for being used for information exchange, the information exchange communication Circuit includes a HD588EESA chip being connected with the micro-control unit.

Further, the signal packet circuit further includes one for data grouping isolation processing circuit.The signal is known Other circuit includes a л 122M3 chip being connected with the micro-control unit, information exchange communicating circuit.

Further, the signal recognition circuit further includes the circuit of a signal flow for identification.The signal identification Circuit includes a 2N7002LT1G chip being connected with the micro-control unit, information exchange communicating circuit.

Further, the crash automatic reset circuit further includes one for handling crash automatic reset circuit, described dead Machine automatic reset circuit includes a MAX706RESA chip being connected with micro-control unit.

The utility model be different from the prior art the utility model has the advantages that the utility model provides a kind of data router, It improves 485 mouthfuls of electric energy meter of extension, and then to electricity-selling management device Function Extension, realizes intelligent mode switching, lead to simultaneously It crosses 485 communication interfaces and accesses multiple electricity management terminals, improve power consumption management efficiency.

Detailed description of the invention

It, below will be right in order to illustrate more clearly of specific embodiment of the present invention or technical solution in the prior art Specific embodiment or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, it is described below In attached drawing be that some embodiments of the utility model are not paying creativeness for those of ordinary skill in the art Under the premise of labour, it is also possible to obtain other drawings based on these drawings.

Fig. 1 is the utility model principle block diagram；

Fig. 2 is the utility model electrical schematic diagram (one)；

Fig. 3 is the utility model electrical schematic diagram (two)；

Fig. 4 is prior art one master and multiple slaves connection type；

Fig. 5 be the prior art mostly main one from or it is how main mostly from connection type；

Appended drawing reference:

1 micro-control unit, 2 crash automatic reset circuits, 3 signal recognition circuits, 4 signal packet circuits, 5 information exchanges are logical Interrogate circuit, 6 data output interface circuits.

Specific embodiment

The technical solution of the utility model is clearly and completely described below in conjunction with attached drawing, it is clear that described Embodiment is the utility model a part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, originally Field those of ordinary skill every other embodiment obtained without making creative work belongs to practical Novel protected range.

It is in the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", " perpendicular Directly ", the orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, and is only For ease of description the utility model and simplify description, rather than the device or element of indication or suggestion meaning must have it is specific Orientation, be constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.In addition, term " the One ", " second ", " third " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.

In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally Connection；It can be mechanical connection, be also possible to be electrically connected；It can be directly connected, the indirect phase of intermediary can also be passed through Even, it can be the connection inside two elements.For the ordinary skill in the art, can be understood with concrete condition above-mentioned The concrete meaning of term in the present invention.

As shown in Figure 1,2 and 3, a kind of communication data router includes micro-control unit 1, crash automatic reset circuit 2, letter Number identification circuit 3, signal packet circuit 4, the communicating circuit 5 of information exchange, data output interface circuit 6.Data output interface Circuit 6 is connected with information exchange communicating circuit 5, then respectively by signal recognition circuit 3, signal packet circuit 4 processing after with it is micro- Control unit 1 be connected processing circuit be connected.The utility model further includes the connected crash automatic reset circuit 2 of a mainboard, with Micro-control unit 1 is connected.Lead to when 485 communication datas of external negative control terminal and sale of electricity management terminal are linked into the utility model Data router is interrogated, data output interface circuit 6 is passed through；Pass through signal recognition circuit 3 respectively again；The processing of signal packet circuit 4 Data grouping is sent to the meter reading requirement for making data meet electric energy meter to micro-control unit 1 afterwards.

As shown in figure 4, more main this modes have more main equipments if simply by multiple 485 mouthfuls and be connected to together, There is a this control structure it finds that with next problem: will lead to nothing when multiple host RS485 output is connected together Method communication.Reason: the sensitivity that can be identified due to RS485 bus input end will lead to RS485 bus voltage in ± 200mV It is unable to reach -200mV or less (not making a concrete analysis of here), leads to not communicate.R485-2V1 data router is based on Calculation machine application technology, modern communications technology, power auto-control technology.It is a kind of for extending 485 communication data routers, it is real Now mostly from the data preemptive type reallocation solution under a host system.Solve the double negative controls of electricity-selling management device field application+ 485 interface of gauge table not enough problem when sale of electricity management terminal.One master and multiple slaves (Figure1) this mode only has a master Equipment.That is the N number of electric energy meter of sale of electricity Management Controller copy reading

As shown in figure 5, mostly main one from or more masters mostly have more main equipments from (Figure2) this mode.That is sale of electricity management Controller and load management terminal copy reading electric energy meter.But it will lead to nothing when multiple host RS485 output is connected together Method communication.Reason: the sensitivity that can be identified due to RS485 bus input end will lead to RS485 bus voltage in ± 200mV - 200mV is unable to reach hereinafter, leading to not communicate.To solve this problem it is necessary to access 485 data routers.

It takes and accesses each circuit-switched data at times, after having data access, other circuit-switched datas can be shielded, it is preferential to guarantee load pipe The communication between terminal and ammeter is managed, accesses the communication between sale of electricity Management Controller and ammeter again when bus free.

Finally, it should be noted that the above various embodiments is only to illustrate the technical solution of the utility model, rather than it is limited System；Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should Understand: it is still possible to modify the technical solutions described in the foregoing embodiments, or to some or all of Technical characteristic is equivalently replaced；And these are modified or replaceed, it does not separate the essence of the corresponding technical solution, and this is practical new The range of each embodiment technical solution of type.

Claims (6)

1. a kind of communication data router, including vehicle frame and drive axle, it is characterised in that: it include motherboard circuit, the mainboard Circuit includes micro-control unit, crash automatic reset circuit, signal recognition circuit, signal packet circuit, data output interface electricity Road, information exchange communicating circuit, the signal recognition circuit and crash automatic reset circuit are electrically connected with micro-control unit input terminal It connects, receives signal for handling, micro-control unit output end is electrically connected signal packet circuit input terminal, the output of signal packet circuit Link information interactive correspondence circuit is held, via information exchange communicating circuit connection signal identification circuit, by signal recognition circuit It is electrically connected with the microcontrol unit, signal is handled, data output interface circuit is electrically connected with information exchange communicating circuit, is used It is exported in by the data finally handled.

2. communication data router according to claim 1, it is characterised in that: the micro-control unit further includes at data Circuit is managed, the data processing circuit includes data processing chip.

3. communication data router according to claim 1, it is characterised in that: the motherboard circuit further includes for information Interactive communicating circuit, the information exchange communicating circuit include a HD588EESA chip being connected with the micro-control unit.

4. communication data router according to claim 1, it is characterised in that: the signal packet circuit further includes being used for Data grouping isolation processing circuit, the signal recognition circuit include and the micro-control unit, information exchange communicating circuit phase л 122M3 chip even.

5. communication data router according to claim 1, it is characterised in that: the signal recognition circuit further includes being used for The circuit of identification signal flow direction, the signal recognition circuit includes being connected with the micro-control unit, information exchange communicating circuit 2N7002LT1G chip.

6. communication data router according to claim 1, it is characterised in that: the crash automatic reset circuit further includes For handling crash automatic reset circuit, the crash automatic reset circuit includes the MAX706RESA being connected with micro-control unit Chip.