CN201222806Y - Extended wireless mobile network data terminal unit with multi interfaces - Google Patents
Extended wireless mobile network data terminal unit with multi interfaces Download PDFInfo
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- CN201222806Y CN201222806Y CNU2008200946634U CN200820094663U CN201222806Y CN 201222806 Y CN201222806 Y CN 201222806Y CN U2008200946634 U CNU2008200946634 U CN U2008200946634U CN 200820094663 U CN200820094663 U CN 200820094663U CN 201222806 Y CN201222806 Y CN 201222806Y
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
The utility model discloses a wireless mobile network data terminal unit with multi-interface extension, which comprises a power supply module, a main control unit and a wireless transport module, wherein the power supply module is connected with the main control unit, and the wireless transport module is connected with the main control unit. The wireless mobile network data terminal unit with the multi-interface extension further comprises a multi-interface extension module and an interface chip/interface connector, wherein the multi-interface extension module is connected with the main control unit, and the multi-interface extension module is connected with the interface chip/interface connector. The wireless mobile network data terminal unit with the multi-interface extension has the beneficial effects that through arranging a built-in multi-interface extension module, the wireless mobile network data terminal unit can meet that a multiuser terminal is connected with the wireless mobile network data terminal unit at the same time, also can reduce the production cost, is easy to maintain, and also can achieve the purpose of saving energy simultaneously.
Description
Technical field
The utility model relates to a kind of data terminal unit, particularly a kind of mobile radio network data terminal unit.
Background technology
The technology that current DTU (mobile radio network data terminal unit) uses is relatively single, all is to adopt a single-chip microcomputer to form the CPU control module to be connected with the wireless network radio-frequency module, realizes the transmission of data terminal unit at mobile radio network; Simultaneously, the CPU module provides a physical interface for customer equipment, realizes client's data acquisition unit or the transfer of data between other relevant devices and the data terminal unit.But when the active user realizes that a plurality of interfaces are expanded, normally directly the serial ports expansion server of an external serial interface or the expansion equipment of other interfaces on existing DTU (mobile radio network data terminal unit) equipment, such interface extended mode not only causes use cost to be multiplied, and complexity is safeguarded in increase, cause system power dissipation to strengthen, complicated operationization is unfavorable for energy-conserving and environment-protective.If directly adopt man-to-man connection the between many DTU equipment and many data acquisition units, cost is higher so, and it is more difficult to safeguard, power consumption is bigger.
Summary of the invention
In order to solve prior art problems, the utility model provides a kind of mobile radio network data terminal unit with many interface expansions, at described mobile radio network data terminal unit many interfacing expansion modules are set, make a plurality of user terminals insert described many interfacing expansion modules simultaneously by interface chip/interface connector, therefore this mobile radio network data terminal unit not only can satisfy the multiple users expansion, greatly reduce and produce and maintenance cost, and improved the applicability of this mobile radio network data terminal unit, be specially adapted to the bigger occasion of multiple users operational environment closeness, have some management equipments in the machine room such as each base station of China Mobile, use a few many interface DTU just can set up the interface channel of all devices and control centre.
The technical scheme that the prior art problem that solves the utility model is adopted is: a kind of mobile radio network data terminal unit with many interface expansions, comprise power module, main control unit and wireless transport module, described power module is connected with described main control unit, described wireless transport module is connected with described main control unit, and described mobile radio network data terminal unit with many interface expansions also comprises many interfacing expansion modules and interface chip/interface connector; Described many interfacing expansion modules are connected with described main control unit; Described many interfacing expansion modules are connected with described interface chip/interface connector.
The utility model further improves: described many interfacing expansion modules comprise logic selector and interface enable chip.
The utility model further improves: described many interfacing expansion modules are many interfaces extended chip.
The utility model further improves: described logic selector is the line decoder, can select 74LVC138 3-to-8 line decoder; The interface of described interface enable chip is a serial ports, and described serial ports is a serial communication interface.
The utility model further improves: described main control unit is connected by data, address and control signal wire with described many interfaces extended chip.
The utility model further improves: the interface of described many interfaces extended chip is a serial ports, and described serial ports is a serial communication interface.
The utility model further improves: described many interfacing expansion modules are connected by general input/output port with described main control unit; Described many interfacing expansion modules are connected by the serial ports link with described interface chip/interface connector.
The utility model further improves: described interface chip/interface connector comprises a described interface chip/interface connector at least.
The utility model further improves: described wireless transport module is a wireless radio frequency modules.
The utility model further improves: described serial ports is RS232 interface, RS485 interface, RS422 interface, TTL interface or USB interface.
The beneficial effects of the utility model are: in the environment of terminal equipment branch than comparatively dense, by the mobile radio network data terminal unit of built-in many interfacing expansion modules is set, can satisfy multiple users and insert described mobile radio network data terminal unit simultaneously, can reduce production costs again, avoid the wasting of resources, be easy to plant maintenance, also can reach the purpose of energy-conserving and environment-protective simultaneously.
Description of drawings
Fig. 1 is that the constructional device that the utlity model has the mobile radio network data terminal unit of many interface expansions is realized block diagram;
Fig. 2 is the many interfacing expansion module one realization example block diagrams of described mobile radio network data terminal unit;
Fig. 3 is another realization block diagram of described mobile radio network data terminal unit constructional device;
Fig. 4 is that the data transmit-receive of described mobile radio network data terminal unit is realized block diagram.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
As shown in Figure 1, a kind of mobile radio network data terminal unit with many interface expansions, comprise power module 1, main control unit 2 and wireless transport module 3, described power module 1 is connected with described main control unit 2, described wireless transport module 3 is connected with described main control unit 2, and described mobile radio network data terminal unit with many interface expansions also comprises many interfacing expansion modules 4, interface chip/interface connector 5; Described many interfacing expansion modules 4 are connected 2 with described main control unit; Described many interfacing expansion modules 4 are connected with described interface chip/interface connector 5.In specific implementation process, described wireless transport module 3 is a wireless radio frequency modules, and described main control unit 2 is a central processor CPU.In some specific embodiments, as Fig. 2, Fig. 3, described many interfacing expansion modules 4 are connected by general input/output port with described main control unit 2; Described many interfacing expansion modules 4 are connected by the serial ports link with described interface chip/interface connector 5.Described power module 1 provides the operating voltage that needs for whole DTU device (mobile radio network data terminal unit), and described interface chip/interface connector 5 is connected with data acquisition or other-end equipment, with the interface equipment communication; CPU plays central role in whole device, control the running status of whole device, simultaneously, described CPU with the data forwarding of each interface equipment to wireless radio frequency modules, by described wireless radio frequency modules and user data processing center transmission data.
In one embodiment, with reference to figure 2, described many interfacing expansion modules 4 comprise logic selector and interface enable chip, and described logic selector is the line decoder; The interface of described interface enable chip is a serial ports, and described serial ports is a serial communication interface, and described logic selector uses the 74LVC138 3-to-8 line decoder of Philips; Can realize the gating of 8 road serial ports is controlled by this logic decoder.Described interface enable chip is selected 74LVC244 chip commonly used for use, by three inputs of CPU control 74LVC138, realizes enabling of a 74LVC244 passage at any one time, thus serial ports of gating; Simultaneously, comprise a described interface chip/interface connector 5 in this DTU device at least.
In another embodiment, described many interfacing expansion modules 4 are many interfaces extended chip 43, the interface of described many interfaces extended chip 43 is a serial ports, described serial ports is a serial communication interface, described many interfaces extended chip 43 is connected by data, address and control signal wire with described main control unit 2, expand a plurality of separate serial ports, described separate serial ports is connected with a described interface chip/interface connector 5 at least, thereby realizes the mobile radio network data terminal unit of many interface expansions.
In the environment of terminal equipment distribution than comparatively dense, can be good at satisfying condition by the device of interface DTU more than (mobile radio network data terminal unit), as Fig. 4, a plurality of terminal equipments by one have many interfaces DTU device (mobile radio network data terminal unit) with message transmission in main control unit 2, and described main control unit 2 will be by wireless data transmission network (as GSM, GPRS, CDMA, EDGE, WAP, WCDMA, TD-SCDMA, CDMA2000 etc.) information is sent to the user data service center, and the information that receives is handled at the user data service center, according to different needs relevant information is fed back to described main control unit 2 by wireless data transmission network, described main control unit 2 feeds back to corresponding terminal equipment by described many interfaces DTU device (mobile radio network data terminal unit) with the result.
In the practicality, as shown in Figure 1, power module provides the operating voltage that needs for whole device.Interface connector is connected with data acquisition or other-end equipment, with the interface equipment communication; CPU plays central role in whole device, control the running status of whole device, and simultaneously, CPU arrives RF module (wireless radio frequency modules) with the data forwarding of each interface equipment, by RF module (wireless radio frequency modules) and user data processing center transmission data.
In the selection of serial ports, can be RS232 interface, RS485 interface, RS422 interface, TTL interface or USB interface, can adopt above-mentioned a plurality of interface to be used together, also can only use one of them interface.
Apparatus of the present invention key component is in the physics realization of many interfaces, and diagram is described below.
As shown in Figure 1, in multi-interface wireless mobile network data terminal unit, main control unit 2 selects to carry out with the user physical channel of transfer of data by the output of the many interfacing expansion modules 4 of control.Many station terminals equipment of user can be connected in the multi-interface wireless mobile network data terminal unit, carries out data communication.Described many interfacing expansion modules 4 comprise that a logic selector and a plurality of serial ports enable chip, illustrate herein.As shown in Figure 2, the logic selector uses the 74LVC138 3-to-8 line decoder of Philips; Can realize the gating of 8 road serial ports is controlled by this logic decoder.Serial ports enables chip and selects 74LVC244 chip commonly used for use, by three inputs of CPU control 74LVC138, realizes enabling of a 74LVC244 passage at any one time, serial ports of gating.
Fig. 3 is the another kind of implementation of apparatus of the present invention, it is to adopt many interfaces extended chip 43, main control unit 2 is connected by data, address and control signal wire with described many interfaces extended chip 43 and expands a plurality of separate serial ports, thereby realizes the mobile radio network data terminal unit of many interfaces.
Key point of the present invention is to have added a kind of module of expanding many interfaces in existing mobile radio network data terminal unit, thereby has realized a kind of mobile radio network data terminal unit that can connect multiple devices by this expansion connection module that is used in the mobile radio network field.Therefore important is exactly this data terminal unit that is used in the extensive interface of wireless mobile communications field, is specially the structure of device, the design of expanded circuit.
Existing mobile radio network data terminal unit has only an external interface.When use terminal equipment branch than the environment of comparatively dense in the time, the shortcoming that will have the wasting of resources and cost to be multiplied.And apparatus of the present invention have well solved this problem, and several even multi-interface wireless mobile network data terminal unit just can satisfy most of user's demand.
Above content be in conjunction with concrete preferred implementation to further describing that the utility model is done, can not assert that concrete enforcement of the present utility model is confined to these explanations.For the utility model person of an ordinary skill in the technical field, under the prerequisite that does not break away from the utility model design, can also make some simple deduction or replace, all should be considered as belonging to protection range of the present utility model.
Claims (10)
1. one kind has the mobile radio network data terminal unit that many interfaces are expanded, comprise power module (1), main control unit (2) and wireless transport module (3), described power module (1) is connected with described main control unit (2), described wireless transport module (3) is connected with described main control unit (2), it is characterized in that: described mobile radio network data terminal unit with many interface expansions also comprises many interfacing expansion modules (4) and interface chip/interface connector (5); Described many interfacing expansion modules (4) are connected (2) with described main control unit; Described many interfacing expansion modules (4) are connected with described interface chip/interface connector (5).
2. mobile radio network data terminal unit according to claim 1 is characterized in that: described many interfacing expansion modules (4) comprise logic selector and interface enable chip.
3. mobile radio network data terminal unit according to claim 1 is characterized in that: described many interfacing expansion modules (4) are many interfaces extended chip.
4. mobile radio network data terminal unit according to claim 2 is characterized in that: described logic selector is the line decoder; The interface of described interface enable chip is a serial ports.
5. mobile radio network data terminal unit according to claim 3 is characterized in that: described main control unit (2) is connected by data, address and control signal wire with described many interfaces extended chip.
6. mobile radio network data terminal unit according to claim 5 is characterized in that: the interface of described many interfaces extended chip is a serial ports.
7. according to claim 1 or 4 or 6 described mobile radio network data terminal units, it is characterized in that: described many interfacing expansion modules (4) are connected by general input/output port with described main control unit (2); Described many interfacing expansion modules (4) are connected by the serial ports link with described interface chip/interface connector (5).
8. mobile radio network data terminal unit according to claim 7 is characterized in that: described interface chip/interface connector (5) comprises a described interface chip/interface connector (5) at least.
9. mobile radio network data terminal unit according to claim 8 is characterized in that: described wireless transport module (3) is a wireless radio frequency modules.
10. mobile radio network data terminal unit according to claim 9 is characterized in that: described serial ports is RS232 interface, RS485 interface, RS422 interface, TTL interface or USB interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200946634U CN201222806Y (en) | 2008-06-17 | 2008-06-17 | Extended wireless mobile network data terminal unit with multi interfaces |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200946634U CN201222806Y (en) | 2008-06-17 | 2008-06-17 | Extended wireless mobile network data terminal unit with multi interfaces |
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| CN201222806Y true CN201222806Y (en) | 2009-04-15 |
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| CNU2008200946634U Expired - Lifetime CN201222806Y (en) | 2008-06-17 | 2008-06-17 | Extended wireless mobile network data terminal unit with multi interfaces |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103870428B (en) * | 2014-03-19 | 2017-01-18 | 顺德职业技术学院 | Serial port extender for microprocessor |
| CN107368861A (en) * | 2017-06-23 | 2017-11-21 | 芜湖恒天易开软件科技股份有限公司 | The system that can recognize that a variety of different vehicles in short-term |
| CN110456705A (en) * | 2019-08-14 | 2019-11-15 | 珠海格力电器股份有限公司 | Network control device capable of dynamically expanding interface and building automatic control system |
| CN111444127A (en) * | 2020-02-26 | 2020-07-24 | 中国电子科技集团公司第二十八研究所 | A data external memory expansion interface |
-
2008
- 2008-06-17 CN CNU2008200946634U patent/CN201222806Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103870428B (en) * | 2014-03-19 | 2017-01-18 | 顺德职业技术学院 | Serial port extender for microprocessor |
| CN107368861A (en) * | 2017-06-23 | 2017-11-21 | 芜湖恒天易开软件科技股份有限公司 | The system that can recognize that a variety of different vehicles in short-term |
| CN110456705A (en) * | 2019-08-14 | 2019-11-15 | 珠海格力电器股份有限公司 | Network control device capable of dynamically expanding interface and building automatic control system |
| CN111444127A (en) * | 2020-02-26 | 2020-07-24 | 中国电子科技集团公司第二十八研究所 | A data external memory expansion interface |
| CN111444127B (en) * | 2020-02-26 | 2021-11-26 | 中国电子科技集团公司第二十八研究所 | Data external memory expansion interface |
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Granted publication date: 20090415 |