CN201716851U

CN201716851U - Special transformer collecting terminal provided with modularized communication module

Info

Publication number: CN201716851U
Application number: CN2010202142362U
Authority: CN
Inventors: 刘宣; 祝恩国; 唐悦; 王燕华; 常蕾; 夏怡虹; 阿辽沙·叶; 刘岩
Original assignee: China Electric Power Research Institute Co Ltd CEPRI
Current assignee: State Grid Corp of China SGCC; China Electric Power Research Institute Co Ltd CEPRI
Priority date: 2010-05-25
Filing date: 2010-05-25
Publication date: 2011-01-19
Anticipated expiration: 2020-05-25

Abstract

The utility model discloses a special transformer collecting terminal provided with a modularized communication module, and particularly relates to a device for collecting electric energy information of special transformer users. The special transformer collecting terminal comprises a display screen, a motherboard, communication interfaces and connecting terminals, wherein remote communication modules and signal expansion interface modules are mounted on the motherboard, the remote communication modules are connected with the remote communication terminal interfaces on the motherboard through a substrate, a signal receiver is arranged on the substrate, and the signal expansion interface modules are connected with the expansion terminal interfaces on the motherboard through connectors. Each remote communication module and each signal expansion interface module are designed in plug-in connection inside the special transformer collecting terminal instead of fixed connection in the prior art and are provided with universal pins, thereby achieving free switching among different communication modes. Due to the design of the signal expansion interface modules, the control interface channels of the special transformer collecting terminal are increased from two to four and the switch signal channels of the special transformer collecting terminal are increased from six to eight. The technical scheme greatly reduces the replacement cost and the construction difficulty of the user.

Description

A kind of special change acquisition terminal of installation module communication module

Technical field

The utility model belongs to power industry, is specifically related to a kind of device that gathers special change user energy information.

Background technology

Specially becoming acquisition terminal is the equipment that special change user power information is gathered, can realize electric energy meter data acquisition, electric energy measuring equipment operating mode and power supply electric energy quality monitoring, and the monitoring of client's power load and electric flux, and image data managed and transmitted in both directions. Owing to specially become at present the disunity of acquisition terminal communication technology standard, the communication mode of acquisition system can only be selected according to various places user's demand by each device fabrication producer, the specific acquisition terminal communication interface that specially becomes of design, one specially becomes acquisition terminal and can only adopt a kind of communication mode, fast development along with the communication technology, the user can select fast response time, communication efficiency is good, expense the is low communication technology at any time according to need of work fully, but owing to specially become acquisition terminal communication interface disunity, if the user changes the communication technology, can only be by purchasing the new mode that specially becomes acquisition terminal or change whole equipment, so that the user has increased meaningless expense, also increased difficulty of construction to the staff, and great in constructing amount, the cycle is long.

The utility model content

Single for solving prior art special secondary school change acquisition terminal communication module, can not change according to actual conditions the problem of communication pattern, the utility model provides a kind of remote communication interface to adopt the new acquisition terminal that specially becomes of modularized design, guarantee that the various telecommunication modules that specially become the acquisition terminal use realize exchanging separately, concrete scheme is as follows: a kind of special change acquisition terminal of installation module communication module, comprise the display screen that is installed on the shell, built-in mainboard, the communication interface that connects on the mainboard and binding post, it is characterized in that, telecommunication module and signal extension interface module are installed on the described mainboard, described telecommunication module is connected with remote terminal interface on the mainboard by substrate, on the described substrate signal receiver is installed, described signal extension interface module is connected with terminal extension interface on the mainboard by connector.

Another optimal way of the present utility model: described remote terminal interface is double 30 needle sockets, and described terminal extension interface is double 16 needle sockets.

Another optimal way of the present utility model: described telecommunication module is in 230MHz private network, GPRS wireless public network, cdma wireless public network or the Ethernet chip any.

The utility model is with each specially becomes the communication module of solidifying in the acquisition terminal in the prior art, re-start design, telecommunication module and signal extension interface module all are designed to the module of plug-in, formulate unified pin, the implication of each pin of specified in more detail, then press the various communication channels of communication module interface design standards, various communication chips are installed on the unified communication module, so that realize between the various communication modes changing arbitrarily, when the user need to change remote communication mode, only need plug corresponding communication module and get final product, make the user dispose as required the way of remote signal and switching value signal. The signal extension Design of Interface Module can expand to 4 the tunnel by 2 the tunnel with the control interface that specially becomes acquisition terminal, and its switching value signal is expanded to 8 the tunnel by 6 the tunnel. The local communication pattern that this programme specially becomes acquisition terminal can change arbitrarily, user's replacement cost and difficulty of construction have been greatly reduced, guarantee that the telecommunication module that specially becomes the acquisition terminal use realizes exchanging separately, the technical standard, the construction of propelling power consumer power information acquisition system, operation, the maintenance that specially become acquisition terminal for Specification Design provide technical guarantee.

Description of drawings

Fig. 1 the utility model specially becomes the acquisition terminal scheme of installation

Fig. 2 specially becomes acquisition terminal telecommunication module pin schematic diagram

Fig. 3 specially becomes acquisition terminal signal extension interface module schematic diagram

The specific embodiment

Special change acquisition terminal of the present utility model comprises mainboard 1, power supply, telecommunication module 3, the signal extension interface module 7 that is installed in the box body, and there are liquid crystal display, button, indicator lamp, binding post and communication interface etc. in the box body outside. As shown in Figure 1, this programme is in specially becoming the acquisition terminal design, telecommunication module and signal extension interface module are carried out modularized design, signal extension interface module 7 is placed on the left side, middle part of special change acquisition terminal mainboard, telecommunication module 3 is plugged on right side, mainboard middle part by substrate 2, is connected with communication interface 5 and binding post on the mainboard.

The telecommunication mode can be selected in 230MHz private network, GPRS wireless public network, cdma wireless public network, the Ethernet any at present. For making a special acquisition terminal that becomes to adapt to different telecommunication modes, this programme adopts modularized design with various telecommunication module GPRS modules/CDMA module/PSTN module/mixed-media network modules mixed-media/230M radio station/optic module, can directly exchange, telecommunication module 3 is plugged on by substrate 2 on the interface of mainboard, adopts the telecommunication module of Modular Structure Design can make things convenient for the user to select different communication modes according to the work on the spot needs. The communication chip of every kind of communication mode is made into respectively the module of unified specification, and as shown in Figure 2, the telecommunication module adopts 2 * 15 double contact pins as connector, and the remote terminal interface 4 on mainboard adopts 2 * 15 double jacks as connector. The connector lower left corner on the Terminal Interface Board is 1 pin, and telecommunication module interface pin definitions sees Table 1.

Table one, telecommunication module pin definition list

Terminal Interface Board

The module corresponding pin

The signal classification

Signal name

Sense (for module)

Explanation

Pin numbering

Numbering

1、3、5

Power supply

VDD5v

The power supply input

The input of communication module power supply, 5V ± 0.25V, instantaneous maximum current 1.5A

2

Power supply ground

GND

The power supply input

The input of communication module power supply ground

4

USB

USB-HP

The USB differential signal

USB HOST+

6

USB

USB-HN

The USB differential signal

USB HOST-

7

Power supply ground

GND

The power supply input

The input of communication module power supply ground

8

Rs 232 serial interface signal

RXD

Output

Module serial ports output signal (3.3V/TTL)

9

Rs 232 serial interface signal

TXD

Input

Module serial ports input signal (3.3V/TTL)

10

Output signal 1

Output

Module serial ports output signal (3.3V/TTL)

11	11	Output signal 2		Output	Module serial ports output signal (3.3V/TTL)
						12	12	Output signal 3		Output	Module serial ports output signal (3.3V/TTL)
13	13	Input signal 1		Input	Module serial ports input signal (3.3V/TTL)
						14	14	Input signal 2		Input	Module serial ports input signal (3.3V/TTL)
15	15	Module controls	RST	Input	The communication module reseting controling signal, communication module is in reset mode (3.3V/TTL) during for " 0 "
						16	16	Input signal	ON/OFF	Input	The input of module machine open/close signal
17	17	Power supply ground	GND	The power supply input	The input of communication module power supply ground
						18	18	State recognition	STATE0	Output	Module type identification
19	19	State recognition	STATE1	Output	Module type identification
						20	20	State recognition	STATE2	Output	Module type identification
21	21	State recognition	STATE3	Output	Module type identification
						22	22	State recognition	STATE4	Output	Module type identification
23	23	Power supply	VCC3v3	The power supply input	The logic circuit working power, 3.3V ± 0.3V, maximum current 50mA
						24	24	Power supply	GND	The power supply input	The input of communication module power supply ground
25	25	Network signal	TD+	The network differential signal	Ethernet sends
						26	26	Network signal	TD-	The network differential signal	Ethernet sends
27	27	Network signal	RD+	The network differential signal	Ethernet receives
						28	28	Network signal	RD-	The network differential signal	Ethernet receives
29	29	Network signal	/LED_ACT	Input	Network indicator lamp input signal, Low level effective, indication network have data to transmit.
						30	30	Network signal	/LED_LIN K	Input	Network indicator lamp input signal, Low level effective, the indication network physical connection is set up.

Because this programme is all made the communication chips such as 230MHz private network, GPRS wireless public network, cdma wireless public network, Ethernet the telecommunication module of unified specification, the user can be according to local network conditions, corresponding telecommunication module is installed, when the local communication mode changes, unwanted telecommunication module is pulled up, changed again the replacing that corresponding telecommunication module can be finished new network.

The signal extension interface module of this programme adopts 2 * 8 double contact pins as connector, and the signal extension interface module utilizes change-over circuit that 2 road control interfaces of former mainboard output are expanded to 4 the tunnel, and its switching value signal is expanded to 8 the tunnel by 6 distances. As shown in Figure 3, the terminal extension interface on the mainboard 6 adopts 2 * 8 double jacks as connector. Connector lower left corner pin on the Terminal Interface Board is 1 pin. Signal extension interface module interface pin is defined as follows table,

Table two, signal extension interface module pin definitions

Claims

1. the special change acquisition terminal of an installation module communication module, comprise the display screen that is installed on the shell, built-in mainboard (1), the communication interface that connects on the mainboard and binding post, it is characterized in that, telecommunication module and signal extension interface module (7) are installed on the described mainboard (1), described telecommunication module is connected with remote terminal interface (4) on the mainboard by substrate (2), signal receiver (5) is installed on the described substrate (2), and described signal extension interface module (7) is connected with terminal extension interface (6) on the mainboard by connector.

2. special change acquisition terminal as claimed in claim 1 is characterized in that, described remote terminal interface (4) is double 30 needle sockets, and described terminal extension interface (6) is double 16 needle sockets.

3. special change acquisition terminal as claimed in claim 2 is characterized in that, described telecommunication module (5) is in 230MHz private network, GPRS wireless public network, cdma wireless public network or the Ethernet chip any.