CN113438561A

CN113438561A - II type concentrator with house becomes recognition function

Info

Publication number: CN113438561A
Application number: CN202110452950.8A
Authority: CN
Inventors: 葛玉磊; 李宏硕; 郑亚岗; 孙德辉; 孙彦鹏
Original assignee: Shanghai Enchips Integrated Circuit Co ltd; Qingdao Topscomm Communication Co Ltd
Current assignee: Shanghai Enchips Integrated Circuit Co ltd; Qingdao Topscomm Communication Co Ltd
Priority date: 2021-04-26
Filing date: 2021-04-26
Publication date: 2021-09-24

Abstract

The invention discloses a type II concentrator with a user variable identification function, which is characterized in that a remote communication module is used for transmitting interactive information to a type II main board of the concentrator; then the concentrator II type mainboard sends out a special control command, particularly in a PWM wave form, and simultaneously, a confirmation command is replied to the remote communication module, and the remote communication module replies the confirmation command to the master station; after receiving the control command sent by the main board, the household variable identification sending module converts the control command into a household variable identification characteristic signal and switches the household variable identification characteristic signal to a power line network.

Description

II type concentrator with house becomes recognition function

Technical Field

The invention relates to the field of low-voltage power acquisition and communication, in particular to a type II concentrator with a household transformer identification function.

Background

With the popularization and the perfection of the user variable identification technology, a stable characteristic signal transmitting source is of great importance in order to construct a complete user variable identification network.

Most of the transmission sources of the household variable identification signals at the present stage use an electric meter as a unit, and use a carrier channel as uplink communication, which also causes the household variable identification start signal of a concentrator or a previous-stage device to be affected by the power network, and particularly causes the phenomena of mistransmission and misidentification to occur between some back-to-back two areas, so that a transmission device which can stably receive the instruction of the previous-stage device and has extremely high controllability and stability is required.

Disclosure of Invention

The invention aims to solve the technical problem of overcoming the problems in the prior art and provides a type II concentrator with a user change identification function.

The technical scheme of the invention is as follows:

the utility model provides a II type concentrator with house becomes identification function contains remote communication module, concentrator II type mainboard, house becomes discernment sending module, wherein:

the remote communication module is used for communicating with the master website and transmitting the interactive information to the mainboard; in the network structure of new subscriber identity module, the subscriber identity module starting command issued by the master station is received by the remote communication module, and meanwhile, a confirmation instruction replied by the main board is transmitted to the master station so as to determine the start of the whole subscriber identity module process.

The concentrator II type main board is mainly responsible for information processing and supporting a common concentrator functional item, and after receiving a subscriber identity module identification starting command sent by the remote communication module, the concentrator II type main board sends a special control command to the subscriber identity module identification sending module, and then sends a confirmation command to the remote communication module to reply to the master station.

And the household change identification transmitting module is responsible for converting a control command transmitted by the mainboard into a household change identification characteristic signal and switching the household change identification characteristic signal to a power line network.

Drawings

FIG. 1 is a block diagram of the working relationship structure of the present invention.

Fig. 2 is a schematic diagram of the subscriber identity module of the present invention.

Detailed Description

So that those skilled in the art can better understand the present invention and can better understand the objects, features, and advantages of the present invention, the present invention will be described in further detail with reference to the accompanying drawings and detailed description, which are provided for illustration purposes only and are not limiting.

FIG. 1 is a block diagram of the working relationship of the present invention, the remote communication module is used to transmit the interactive information to the concentrator type II motherboard; then the concentrator II type mainboard sends out a special control command, particularly in a PWM wave form, and simultaneously, a confirmation command is replied to the remote communication module, and the remote communication module replies the confirmation command to the master station; after receiving the control command sent by the main board, the household variable identification sending module converts the control command into a household variable identification characteristic signal and switches the household variable identification characteristic signal to a power line network.

Fig. 2 is a schematic diagram of the user change identification module of the present invention, in which a transmission circuit of the user change identification transmission module is directly connected to a strong power line, and after full-bridge rectification by VD2, VD3, VD4 and VD5, a half-wave high voltage direct current is formed in a VIN network after the full-bridge rectification by R12, R13, R14 and R15; two pressure-sensitive devices of RV1 and RV2 are used as overvoltage protection; r12, R13, R14 and R15 are used as load resistors which determine the strength of the characteristic current signal; high-voltage direct current of IN is divided by a clamp of VD1 and a resistor of R1-R4 to provide a fixed voltage for a VT1 grid, after the voltage meets the turn-on voltage of an MOS transistor VT1, the MOS transistor is conducted, a capacitor C3 on a VCC network is charged by a VIN network through a line of R5-R9, and low-voltage direct current VCC is obtained; the PWM control signal is coupled to the VT2 grid electrode through a C2 blocking capacitor, and R16 gives the grid electrode of the MOS tube a low-level initial state to ensure that the MOS tube is not conducted by mistake; when a PWM control signal is input, the C2 removes a direct current component, a driving logic for high and low level switching is left, the MOS transistor can carry out switching state switching according to the logic to enable the optocoupler 01 to be switched in a switching state, the R17 has a current limiting effect to ensure the driving capability of the optocoupler, and when the PWM stops outputting, the charge on the C2 is discharged through the R6 and returns to an initial state; the diode VD6 is used for limiting the negative level to-0.2V so as to prevent the damage of the circuit caused by the overhigh negative voltage; when the optocoupler is switched on, the triode VT3 is switched on, the VT4 is switched off, the level of the point A is high, and the VT2 is switched on after passing through R21, so that a load is switched to a power network to generate current; when the optical coupler is switched off, the triode VT4 is switched on, the VT3 is switched off, and charges on the parasitic capacitance Cgs of the MOS transistor VT2 are discharged through the R21, the R20, the VD8 and the VT4, so that the voltage drop speed of a point B is accelerated, the VT2 can be switched off quickly, a load is removed from a power network, and no current is generated any more; the VD8 and the R20 are added for increasing the charge discharging speed, the R22 gives the gate of the MOS tube a low-level initial state to ensure that the MOS tube is not conducted by mistake, and the VD7 is used for clamping the gate voltage to avoid high-voltage breakdown and damage to the VT 2.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes performed by the present specification and drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. A type II concentrator with a household transformer identification function comprises a remote communication module, a concentrator type II main board and a household transformer identification sending module.

The connection relationship is as follows: the remote communication module is connected with the concentrator II type mainboard through a serial port to carry out communication interaction, and the concentrator II type mainboard is connected with the household variable identification and sending module to control the household variable identification and sending module through PWM waves; and the household transformer identification sending module is connected with the power line and is used for switching the characteristic signal to the power network.

2. The type ii concentrator with subscriber identity module as claimed in claim 1, wherein said telecommunications module is adapted to communicate interactive information to a concentrator type ii motherboard; then the concentrator II type mainboard sends out a special control command, particularly in a PWM wave form, and simultaneously, a confirmation command is replied to the remote communication module, and the remote communication module replies the confirmation command to the master station; after receiving the control command sent by the main board, the household variable identification sending module converts the control command into a household variable identification characteristic signal and switches the household variable identification characteristic signal to a power line network.

3. The type II concentrator with user-changeable identification function as claimed in claim 1, wherein the transmission circuit of the user-changeable identification transmission module is directly connected to the strong power line, and after full-bridge rectification by VD2, VD3, VD4 and VD5, a half-wave type high-voltage direct current is formed in the VIN network after passing through R12, R13, R14 and R15; two pressure-sensitive devices of RV1 and RV2 are used as overvoltage protection; r12, R13, R14 and R15 are used as load resistors which determine the strength of the characteristic current signal; high-voltage direct current of IN is divided by a clamp of VD1 and a resistor of R1-R4 to provide a fixed voltage for a VT1 grid, after the voltage meets the turn-on voltage of an MOS transistor VT1, the MOS transistor is conducted, a capacitor C3 on a VCC network is charged by a VIN network through a line of R5-R9, and low-voltage direct current VCC is obtained; the PWM control signal is coupled to the VT2 grid electrode through a C2 blocking capacitor, and R16 gives the grid electrode of the MOS tube a low-level initial state to ensure that the MOS tube is not conducted by mistake; when a PWM control signal is input, the C2 removes a direct current component, a driving logic for high and low level switching is left, the MOS transistor can carry out switching state switching according to the logic to enable the optocoupler 01 to be switched in a switching state, the R17 has a current limiting effect to ensure the driving capability of the optocoupler, and when the PWM stops outputting, the charge on the C2 is discharged through the R6 and returns to an initial state; the diode VD6 is used for limiting the negative level to-0.2V so as to prevent the damage of the circuit caused by the overhigh negative voltage; when the optocoupler is switched on, the triode VT3 is switched on, the VT4 is switched off, the level of the point A is high, and the VT2 is switched on after passing through R21, so that a load is switched to a power network to generate current; when the optical coupler is switched off, the triode VT4 is switched on, the VT3 is switched off, and charges on the parasitic capacitance Cgs of the MOS transistor VT2 are discharged through the R21, the R20, the VD8 and the VT4, so that the voltage drop speed of a point B is accelerated, the VT2 can be switched off quickly, a load is removed from a power network, and no current is generated any more; the VD8 and the R20 are added for increasing the charge discharging speed, the R22 gives the gate of the MOS tube a low-level initial state to ensure that the MOS tube is not conducted by mistake, and the VD7 is used for clamping the gate voltage to avoid high-voltage breakdown and damage to the VT 2.