CN201611509U

CN201611509U - Network tax-control device supporting gapless network data transmission

Info

Publication number: CN201611509U
Application number: CN2010200147022U
Authority: CN
Inventors: 刘文阳
Original assignee: HISENSE INTELLIGENT COMMERCIAL EQUIPMENT CO Ltd
Current assignee: Qingdao Hisense Intelligent Commercial System Co., Ltd.
Priority date: 2010-01-05
Filing date: 2010-01-05
Publication date: 2010-10-20
Anticipated expiration: 2020-01-05

Abstract

The utility model discloses a network tax-control device supporting gapless network data transmission. The network tax-control device comprises a main control chip and a network interface module connected with the main control chip, wherein, the network interface module supporting multi-network interface communication is connected with multiple network interfaces. The network tax-control device adopts a manner of the main control chip plus the network interface module supporting multi-network interface communication to design a system circuit, and connects the network interface module with the multiple network interfaces, so that the self-adaptation of the network communication data amount, the self-adaptation of the network connection manner, and the self-adaptation of inter network interface communication can be realized through the network interface module, so that the network tax-control device can be directly accessed to an existing network system in a self-adaptive manner without improving the conventional POS network system. Therefore, the improvement cost of the network system is reduced.

Description

Support the network tax controller of no gap transmitting network data

Technical field

The utility model belongs to the tax controlling equipment technical field, specifically, relates to a kind of network tax controller that can the network enabled data have the gap Adaptive Transmission.

Background technology

Network tax controller is present emerging product, is a kind of specialized equipment that is used for monitoring POS system printed invoice information data.Network tax controller adopts the INTERNET network mode that data are gathered and is transferred on the server, data is sent to the POS machine that will visit by server again.Because existing P OS system has possessed perfect network system, and the network system complexity.In order to make full use of existing network system, avoid former network system is carried out the cost increase problem that house of correction causes, need carry out particular design to network tax controller, make it possess the no gap Adaptive Transmission ability of network data, and then reach under the prerequisite that does not influence existing network system operate as normal, realize the purpose of design that network tax controller is communicated by letter with existing POS system express network.

The utility model content

The utility model is for fear of transforming the cost rising problem that existing POS network system is caused, a kind of network tax controller of supporting not have the gap transmitting network data is provided, come the planned network The Design of Tax Controled Device by adopting the automatic switch mode of self-adaptation Multi-netmouth data, thereby existing POS network system is not being produced on the prerequisite of considerable influence, realizing that network tax controller directly inserts the purpose of design in the existing POS network system adaptively.

In order to solve the problems of the technologies described above, the utility model is achieved by the following technical solutions:

A kind of network tax controller of supporting not have the gap transmitting network data comprises main control chip and the Network Interface Module that is connected with described main control chip, and described Network Interface Module is supported Multi-netmouth communication, is connected with multi-path network port.

Wherein, in described Network Interface Module, comprise network exchange control chip and multiport isolating transformer, described network exchange control chip is connected between main control chip and the multiport isolating transformer, and by the corresponding connection with described multi-path network port of described multiport isolating transformer.

Further, described network exchange control chip connects described main control chip by independent media's interface, carries out data interaction with main control chip.

Described network exchange control chip preferably adopts a multiport Fast Ethernet cross winding to change control chip to carry out circuit design, and described network exchange control chip one group port is set to independent media's interface and is connected communication with the corresponding interface of described main control chip.

Further again, many groups differential signal receiving end of described network exchange control chip and many group port corresponding be connected of transmitting terminal with described isolating transformer, carry out the bi-directional conversion of signal level by described isolating transformer and handle, so with the corresponding connection of respective data transfer terminal of described multi-path network port.

Further again, described network interface comprises two-way, and described isolating transformer comprises two groups of ports, and every group of port correspondence is connected between the one group of differential signal receiving end and transmitting terminal of a road network mouth and network exchange control chip.

Further, described network interface is the RJ45 interface, and two-way RJ45 interface is integrated in standard 28 needle connectors.

Compared with prior art, advantage of the present utility model and good effect are: the mode that network tax controller of the present utility model adopts main control chip to add the Network Interface Module that can support the Multi-netmouth communication function is come the design system circuit, and be connected with multi-path network port by Network Interface Module, can realize the self-adaptation of network communication data volume by Network Interface Module, the self-adaptation of communication between the self-adaptation of internetwork connection mode and network interface, thereby need not to transform existing P OS network system network tax controller can directly be inserted in the existing network system adaptively, save the improvement cost of network system.

After reading the detailed description of the utility model embodiment in conjunction with the accompanying drawings, other characteristics of the present utility model and advantage will become clearer.

Description of drawings

Fig. 1 is the structural representation of a kind of embodiment of the network tax controller built-in system circuit that proposes of the utility model;

Fig. 2 is the physical circuit schematic diagram of a kind of embodiment of system shown in Figure 1 circuit.

Embodiment

Below in conjunction with accompanying drawing embodiment of the present utility model is described in detail.

The mode that network tax controller of the present utility model adopts main control chip to add the Network Interface Module that can support the Multi-netmouth communication function is carried out the design of circuit system, and be connected communication with multi-path network port by Network Interface Module, as shown in Figure 1, to adopt the two-way network interface is that example describes, the two-way network interface can specifically select for use two-way RJ45 interface to design, corresponding connection with the corresponding port of described Network Interface Module.

Adopt this circuit system design, data in the main control chip can by Network Interface Module with data send to any one with the network equipment that RJ 45 interfaces are connected in, simultaneously also can receive the data of sending from any one network equipment that is connected with the RJ45 interface, as data channel among Fig. 11 and data channel 2.And, and also can freely send, receive data between the network equipment that two RJ45 interfaces are connected, as the data channel among Fig. 12.This kind design can be seamlessly concerning existing POS network system direct access network The Design of Tax Controled Device, network system is transformed, realize the self-adaptation of internetwork connection mode.

Elaborate described concrete syndeton and the principle of work thereof of supporting not have the network tax controller built-in system circuit of gap transmitting network data below by a specific embodiment.

Embodiment one, and referring to shown in Figure 2, the network tax controller of present embodiment is that example describes so that two-way RJ45 interface to be set.Described two-way RJ45 interface can be integrated among a standard 28 needle connector CON22, can be connected communication with the two-way network equipment of outside by described connector CON22, as the A part among Fig. 2.Certainly, also can adopt two independent standard RJ 45 interfaces to design, present embodiment is not limited in above giving an example.

In the present embodiment, the Network Interface Module that is connected with described two-way RJ45 interface can adopt network exchange control chip and the design of multiport isolating transformer to realize.Because the network tax controller of present embodiment only is provided with two-way RJ45 interface, therefore, can specifically select the isolating transformer U27 with two groups of ports to carry out circuit design, as the B part among Fig. 2.In two groups of ports of described isolating transformer U27, include differential signal receiving end and differential signal transmitting terminal.Wherein, in first group of port of isolating transformer U27, differential signal receiving end RX0+, RX0-and differential signal transmitting terminal TX0+, TX0-respectively with first group of data transfer terminal RXP1, RXN1 of connector CON22, TXP1, TXN1 are corresponding is connected; Differential signal receiving end RD0+, RD0-in first group of port and differential signal transmitting terminal TD0+, TD0-respectively with the one group of differential signal receiving end and transmitting terminal (i.e. 12,13,10,9 pins) the corresponding connection of network exchange control chip U26.In second group of port of isolating transformer U27, differential signal receiving end RX1+, RX1-and differential signal transmitting terminal TX1+, TX1-respectively with second group of data transfer terminal RXP0, RXN0 of connector CON22, TXP0, TXN0 are corresponding is connected; Differential signal receiving end RD1+, RD1-in second group of port and differential signal transmitting terminal TD1+, TD1-respectively with the other one group of differential signal receiving end and transmitting terminal (i.e. 3,2,5,6 pins) the corresponding connection of network exchange control chip U26.

In the present embodiment, described network exchange control chip U26 can adopt a Fast Ethernet cross winding that possesses multiport to change control chip design, such as the RTL8305SC chip, as the C part among Fig. 2.Described network exchange control chip U26 has 5 groups of ports, can realize the transmission of 10/100Mbps Fast Ethernet network exchanges data; Integrated 5 medium access controller MAC, 5 physical layer transceivers, 1M SRAM and 1K MAC Address memory districts have effectively reduced the time of tabling look-up and dump time, are applicable to the high-speed local area network interchanger; Each group port all can be supported the 100BASE-TX Fast Ethernet transmission of 100Mbps or the 10base-T Ethernet transmission of 10Mbps.In the present embodiment, wherein one group of port of preferably described network exchange control chip U26 is set to the interface MII of independent media, as the 51-75 pin of network exchange control chip U26, and then is connected communication with the corresponding interface of main control chip by the MII interface.

Certainly, described network exchange control chip U26 also can adopt other signal transmission form to be connected communication with main control chip, and present embodiment is not limited in above giving an example.

When network tax controller need carry out communication with the POS system of far-end, data in the main control chip transfer to isolating transformer U27 by network exchange control chip U26, undertaken after level conversion handles by isolating transformer U27, transfer to connector CON22, and then pass through the INTERNET Network Transmission to far-end server, information data is sent to the POS machine that will visit by server according to the IP address in the data again.In contrast, data in the far-end POS machine then can be by the INTERNET Network Transmission to far-end server, and then by the connector CON22 of server feedback to network tax controller, and then after isolating transformer U27 carries out the level conversion processing, U26 transfers to main control chip by the network exchange control chip, thereby has finished the data interaction of network tax controller and POS system.

Meanwhile, the network equipment that is connected on the two-way network interface of network tax controller also can demonstrate fully the self-adaptation of internetwork connection mode by isolating transformer U27 in the network tax controller and the data interaction between the network exchange control chip U26 realization equipment.

Certainly, the network tax controller of present embodiment only is, and to be example with configuration two-way network interface be illustrated the design of circuit system, dispose the more network tax controller of multi-path network port for needs, only need to come the design system circuit to get final product at isolating transformer and network exchange control chip that the network interface way of needs configuration is selected to have corresponding port quantity, present embodiment no longer launches explanation at this.

Should be noted that; the above only is a kind of preferred implementation of the present utility model; for those skilled in the art; under the prerequisite that does not break away from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.

Claims

1. network tax controller of supporting not have the gap transmitting network data is characterized in that: comprise main control chip and the Network Interface Module that is connected with described main control chip, described Network Interface Module is supported Multi-netmouth communication, is connected with multi-path network port.

2. support according to claim 1 does not have the network tax controller of gap transmitting network data, it is characterized in that: in described Network Interface Module, comprise network exchange control chip and multiport isolating transformer, described network exchange control chip is connected between main control chip and the multiport isolating transformer, and by the corresponding connection with described multi-path network port of described multiport isolating transformer.

3. support according to claim 2 does not have the network tax controller of gap transmitting network data, it is characterized in that: described network exchange control chip connects described main control chip by independent media's interface.

4. support according to claim 3 does not have the network tax controller of gap transmitting network data, it is characterized in that: described network exchange control chip is that multiport Fast Ethernet cross winding changes control chip, and described network exchange control chip one group port is set to independent media's interface and is connected communication with the corresponding interface of described main control chip.

5. the network tax controller that does not have the gap transmitting network data according to each described support in the claim 2 to 4, it is characterized in that: many groups differential signal receiving end of described network exchange control chip and many group port corresponding be connected of transmitting terminal with described isolating transformer, carry out the bi-directional conversion of signal level by described isolating transformer and handle, so with the corresponding connection of respective data transfer terminal of described multi-path network port.

6. support according to claim 5 does not have the network tax controller of gap transmitting network data, it is characterized in that: described network interface comprises two-way, described isolating transformer comprises two groups of ports, and every group of port correspondence is connected between the one group of differential signal receiving end and transmitting terminal of a road network mouth and network exchange control chip.

7. support according to claim 6 does not have the network tax controller of gap transmitting network data, it is characterized in that: described network interface is the RJ45 interface, and two-way RJ45 interface is integrated in standard 28 needle connectors.