CN216625347U

CN216625347U - Adapter plate for converting voice signal into digital signal

Info

Publication number: CN216625347U
Application number: CN202123374559.5U
Authority: CN
Inventors: 周流芳
Original assignee: Guangdong Deling Electronic Technology Co ltd
Current assignee: Guangdong Deling Electronic Technology Co ltd
Priority date: 2021-12-30
Filing date: 2021-12-30
Publication date: 2022-05-27
Anticipated expiration: 2031-12-30

Abstract

The utility model aims to provide the adapter plate which is simple and convenient to install, can feed back talkback voltage in real time and has the function of automatic charge and discharge management and can convert voice signals into digital signals. The power supply comprises a power supply module, a charging and discharging module, an electric quantity calculating module, an emergency output module and an MCU module, wherein the electric quantity calculating module is in communication connection with the MCU module, a first chip is electrically connected with the power supply module and feeds back residual electric quantity to the MCU module, the MCU module controls the discharging of the power supply module through a first MOS tube, a second chip is electrically connected with the electric quantity calculating module and charges and discharges the power supply module through a second MOS tube, the MCU module supplies power to an external module through a third MOS tube, the input end of the MCU module is electrically connected with a DA conversion module, the output end of the MCU module is electrically connected with an AD conversion module, and the output end of the MCU module is in communication connection with a network interface module. The utility model is applied to the technical field of the Internet of things.

Description

Adapter plate for converting voice signal into digital signal

Technical Field

The utility model is applied to the technical field of Internet of things, and particularly relates to a patch panel for converting a voice signal into a digital signal.

Background

Nowadays, real estate develops rapidly, and the elevator is as the indispensable instrument of people's trip, and the security of elevator receives people's more and more attention. With the international promotion of everything interconnection, the domestic internet of things industry is rapidly developed in recent years, at present, most elevators adopt a five-party intercom system, and the five-party intercom system for the elevators is communication among a central host, an elevator car, an elevator machine room, an elevator top and an elevator bottom in the elevator intercom system. At present, the five-party talkback system inside most elevators works inside the elevators independently, so that the safety personnel are inconvenient to know the running state of the five-party talkback system inside the elevators and cannot acquire the specific electric quantity of the internal lithium battery. And many elevator companies have all added the DTU module in the computer lab now, need turn into digital voice signal and DTU communication with the inside analog voice signal of elevator, and the five parties of tradition are talkbacked and are used analog voice signal, can not communicate with DTU direct communication, if change a whole set of five parties system of talkbacking, and the replacement cost is high, and present emergency power source can't calculate specific battery power, does not have the automatic management function of charging and discharging. And no heartbeat package exists between the machine room and the DTU, the connection state cannot be judged in real time, the existing machine room cannot feed back the five-party talkback real-time voltage, the switching module cannot be automatically upgraded, and later maintenance is not facilitated, so that the adapter plate which is simple and convenient to install, can feed back the talkback voltage in real time and has the automatic charging and discharging management function and can convert voice signals into digital signals is needed.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem of overcoming the defects of the prior art and provides the adapter plate which is simple and convenient to install, can feed back talkback voltage in real time and has the function of automatic charge and discharge management and can convert voice signals into digital signals.

The technical scheme adopted by the utility model is as follows: the utility model comprises a power supply module, a charge-discharge module, an electric quantity calculation module, an emergency output module and an MCU module, wherein the electric quantity calculation module is in communication connection with the MCU module, the electric quantity calculation module comprises a first chip and a first MOS (metal oxide semiconductor) tube, the first chip is electrically connected with the power supply module, the first chip feeds back the residual electric quantity to the MCU module, the MCU module controls the discharge of the power supply module through the first MOS tube, the charge-discharge module comprises a second chip and a second MOS tube, the second chip is electrically connected with the electric quantity calculation module, the second chip charges and discharges the power supply module through the second MOS tube, the emergency output module comprises a third MOS tube, the MCU module supplies power to an external module through the third MOS tube, and the input end of the MCU module is electrically connected with a DA conversion module, the output end of the MCU module is electrically connected with an AD conversion module, and the output end of the MCU module is in communication connection with a network port module.

According to the scheme, the adapter plate for converting the voice signal into the digital signal connects the five-party intercom system with the Internet of things system, the adapter plate for converting the voice signal into the digital signal transmits calling/hanging up and conversation of the five-party intercom system to the DTU module, and instructions such as inquiry/operation of the DTU can be transmitted to the five-party intercom system through the adapter plate for converting the voice signal into the digital signal, so that the real 'interconnection' is realized, and the lithium battery is arranged in the adapter plate for converting the voice signal into the digital signal, so that the calculation of electric quantity can be realized, and users can know the charging and discharging conditions of the equipment in time. The MCU module controls the discharge of the power supply module through the first MOS tube, the second chip is electrically connected with the electric quantity calculation module, after the MCU module detects that the commercial power is disconnected, the MCU module controls the conduction of the third MOS tube through controlling the first triode Q1 and the first triode Q4, the power supply module supplies power, and the adapter plate for converting voice signals into digital signals supplies power for the outside by 12V. The DA conversion module is used as the input end of a voice signal, the AD conversion module is used as the output end of a digital signal, and the network port module is electrically connected with the DTU.

The adapter plate for converting the voice signal into the digital signal is additionally provided with an adapter module on the basis of the original five-way talkback, the original wiring does not need to be replaced, the upgrading cost is low, and when the version number is different from the DTU, the adapter plate can be automatically upgraded. The adapter plate for converting the voice signals into the digital signals and the DTU send heartbeat packets at regular time to confirm that the connection is normal, when the connection fails, the connection is restarted, the five-party talkback voltage can be fed back in real time, fault points can be known in time, the automatic charging and discharging management function is achieved, the calculated electric quantity is fed back to the DTU in time, meanwhile, an IP address is automatically obtained, the DHCP function does not need to be manually opened, the self-checking function is achieved, the equipment state is managed, the running state is automatically reported, the adapter plate for converting the voice signals into the digital signals can work by being inserted into the DTU, the installation is simple and direct, the single function at the current stage is gradually replaced, the elevator communication is more intelligent and humanized, and the elevator has better market competitiveness.

In a preferable scheme, the adapter board for converting the voice signal into the digital signal further comprises an echo suppression module, the echo suppression module comprises a third chip with the model of ATH8809, and the MCU module is in communication with the third chip through a serial port.

As can be seen from the above scheme, the ATH8809 internally contains an AEC echo cancellation algorithm, and after the voice signal is input to the ATH8809 through the 39 pins of the ATH8809, the voice signal is output from the 47 pins of the ATH8809 after passing through the internal filter and echo cancellation algorithm of the ATH 8809. The ATH8809 is provided with a power amplifier, and the amplification coefficients of the loudspeaker and the microphone can be adjusted by adjusting the gain coefficient. The MCU module is communicated with the ATH8809 through the serial port so as to send a control signal to the ATH8809, and the echo suppression module can ensure the communication quality, smooth call sending and receiving, clear and noise-free, and non-mute sound.

One preferred scheme is, the net gape module includes that the model is the fourth chip of W5500 and the net gape that the model is RJ45, the fourth chip is connected with the net gape electricity, TCP/IP agreement and PHY and MAC have been embedded into to the fourth chip is inside, the MCU module pass through the SPI interface with fourth chip communication is connected.

According to the scheme, the W5500 is embedded with a TCP/IP protocol, a PHY and an MAC, and after receiving data, the MCU module acquires the received data through the SPI and sends out the data to be sent through the SPI. W5500 belongs to hardware decoding, and the operation steps are simple.

According to a preferable scheme, a first resistor is connected in series at the joint of the MCU module and the fourth chip, and the resistance value of the first resistor is 10 omega.

According to the scheme, the first resistor is used for enhancing the anti-interference capacity of the MCU module in communication with the fourth chip.

Preferably, the second chip is electrically connected with an LED lamp, and the LED lamp displays different colors when the power supply module has a difference from a defined voltage.

According to the scheme, the second chip can observe the charging state through the external connection of the LED lamp, when the voltage of the power supply module is lower than the limited voltage, the power supply module is charged through the first MOS tube, and the LED lamp is displayed in green; when the voltage of the power supply module is full, the first MOS tube cuts off the power supply for the power supply module, and the LED lamp is displayed in red.

One preferable scheme is that the model of the MCU module is STM32F103, the model of the first chip is LTC2943, and the model of the second chip is SLM 6900.

According to the scheme, the STM32F103 is the most common STM32 single chip microcomputer, is high in cost performance, and provides frequency for the MCU module to work through an external crystal oscillator, so that the anti-interference capability is stronger, and the MCU module can work stably even in a severe working environment.

Preferably, the first MOS transistor and the second MOS transistor are both AO4459 in type, and the third MOS transistor is FDN358P in type.

According to the scheme, the maximum current between the S pole and the D pole of the AO4459 is 6.5A, the maximum voltage between the S pole and the D pole is 30V, the 4 pin is low level, the P-channel field effect tube in the AO4459 is conducted (corresponding to the closing of a switch), and the 5-8 pin outputs 5V voltage (5V-USB 1); the maximum value of the driving voltage of the FDN358P is 10V, and the minimum value is 10V and 4.5V.

Preferably,

pins

1 and 2 of the first chip are connected with a second resistor R206, and the first chip is connected with the MCU module through communication of I2C.

According to the scheme, the second resistor R206 serves as a connection electric quantity calculation resistor, the connection electric quantity calculation resistor is connected with

pins

1 and 2 of the first chip, electric quantity (including residual electric quantity) passing through the resistor is obtained through integral accumulation, the first chip is connected with the MCU module through a communication mode of I2C, after an inquiry signal of the MCU module is received, the first chip feeds back the residual electric quantity to the MCU module, the MCU module controls the on-off of the first MOS tube through controlling the first triode Q3 and the second triode Q8, and the first MOS tube is used for controlling the discharging of the power module.

Preferably, the power module has a chip model of XL1509, the input end is connected with a first electrolytic capacitor, a second electrolytic capacitor and a first capacitor, and the output end is connected with an inductor, a third electrolytic capacitor and a second capacitor.

According to the scheme, the input voltage is subjected to wide voltage processing through AN1A, the positive voltage of AN output 1 pin is processed through a magnetic bead L4, then the positive voltage is sequentially connected with a first electrolytic capacitor, a second electrolytic capacitor and a first capacitor, then enters the XL1509, and the output voltage sequentially passes through the inductor, the third electrolytic capacitor and the second capacitor.

Drawings

FIG. 1 is an overall block diagram of the present invention;

FIG. 2 is a circuit schematic of the power module;

FIG. 3 is a schematic circuit diagram of the charge-discharge module;

FIG. 4 is a schematic circuit diagram of the charge calculation module;

FIG. 5 is a circuit schematic of the emergency output module;

FIG. 6 is a circuit schematic of the MCU module;

FIG. 7 is a circuit schematic of the echo suppression module;

fig. 8 is a circuit schematic of the portal module.

Detailed Description

As shown in fig. 1 to 8, in this embodiment, the present invention includes a power module 1, a charge and discharge module 2, an electric quantity calculation module 3, an emergency output module 4, and an MCU module 5, where the electric quantity calculation module 3 is in communication connection with the MCU module 5, the electric quantity calculation module 3 includes a first chip and a first MOS transistor, the first chip is electrically connected to the power module 1, the first chip feeds back the remaining electric quantity to the MCU module 5, the MCU module 5 controls discharge of the power module 1 through the first MOS transistor, the charge and discharge module 2 includes a second chip and a second MOS transistor, the second chip is electrically connected to the electric quantity calculation module 3, the second chip charges and discharges the power module 1 through the second MOS transistor, the emergency output module 4 includes a third MOS transistor, and the MCU module 5 supplies power to an external module through the third MOS transistor, the input end electricity of MCU module 5 is connected with DA conversion module 6, the output end electricity of MCU module 5 is connected with AD conversion module 7, the output end communication of MCU module 5 is connected with net gape module 8.

In this embodiment, the adapter board for converting the voice signal into the digital signal further includes an echo suppression module 9, the echo suppression module 9 includes a third chip with a model of ATH8809, and the MCU module 5 communicates with the third chip through a serial port, thereby sending a control signal to the third chip.

In this embodiment, net gape module 8 includes that the model is the fourth chip of W5500 and the net gape that the model is RJ45, the fourth chip is connected with the net gape electricity, fourth chip inside has been embedded into TCP/IP agreement and PHY and MAC, MCU module 5 through the SPI interface with fourth chip communication is connected.

In this embodiment, a first resistor is connected in series at a connection between the MCU module 5 and the fourth chip, and a resistance of the first resistor is 10 Ω.

In this embodiment, the second chip is electrically connected with an LED lamp, and when there is a difference between the power module 1 and a defined voltage, the LED lamp displays a different color.

In this embodiment, the model of the MCU module 5 is STM32F103, the model of the first chip is LTC2943, and the model of the second chip is SLM 6900.

In this embodiment, the first MOS transistor and the second MOS transistor are each of model AO4459, and the third MOS transistor is of model FDN 358P.

In this embodiment,

pins

1 and 2 of the first chip are connected to a second resistor R206, and the first chip is connected to the MCU module 5 through a communication mode of I2C.

In this embodiment, the power module 1 has a chip model XL1509, an input end connected with a first electrolytic capacitor E28, a second electrolytic capacitor E29 and a first capacitor C147, and an output end connected with an inductor L4, a third electrolytic capacitor E31 and a second capacitor C145.

The working principle of the utility model is as follows: first chip with the power module electricity is connected, first chip feedback residual capacity gives the MCU module, the MCU module passes through first MOS pipe control power module's the discharge, the second chip with electric quantity calculation module electricity is connected, the second chip passes through the second MOS pipe is right power module carries out the charge-discharge, the MCU module detects the commercial power disconnection back, the MCU module controls through controlling first triode Q1 and first triode Q4 switching on of third MOS pipe, at this moment switches over to the power module power supply, 12V are given external power supply to the keysets that turns into speech signal digital signal, the input electricity of MCU module is connected with DA conversion module, the output electricity of MCU module is connected with AD conversion module, the output communication of MCU module is connected with the net gape module.

Claims

1. An adapter plate for converting a voice signal into a digital signal, comprising: the power supply comprises a power supply module (1), a charging and discharging module (2), an electric quantity calculating module (3), an emergency output module (4) and an MCU module (5), wherein the electric quantity calculating module (3) is in communication connection with the MCU module (5), the electric quantity calculating module (3) comprises a first chip and a first MOS (metal oxide semiconductor) tube, the first chip is electrically connected with the power supply module (1), the first chip feeds back the residual electric quantity to the MCU module (5), the MCU module (5) controls the discharging of the power supply module (1) through the first MOS tube, the charging and discharging module (2) comprises a second chip and a second MOS tube, the second chip is electrically connected with the electric quantity calculating module (3), the second chip charges and discharges the power supply module (1) through the second MOS tube, the emergency output module (4) comprises a third MOS tube, MCU module (5) passes through the third MOS pipe supplies power to outside module, the input electricity of MCU module (5) is connected with DA conversion module (6), the output electricity of MCU module (5) is connected with AD conversion module (7), the output communication of MCU module (5) is connected with net gape module (8).

2. The patch panel for converting a voice signal into a digital signal according to claim 1, wherein: the adapter plate for converting the voice signal into the digital signal further comprises an echo suppression module (9), the echo suppression module (9) comprises a third chip with the model of ATH8809, and the MCU module (5) is communicated with the third chip through a serial port.

3. The patch panel for converting a voice signal into a digital signal according to claim 1, wherein: net gape module (8) are RJ 45's net gape including the fourth chip that the model is W5500 and model, the fourth chip is connected with net gape electricity, fourth chip inside TCP/IP agreement and PHY and the MAC of having imbedded, MCU module (5) through the SPI interface with fourth chip communication is connected.

4. A patch panel for converting a speech signal into a digital signal according to claim 3, wherein: and a first resistor is connected in series at the joint of the MCU module (5) and the fourth chip, and the resistance value of the first resistor is 10 omega.

5. The patch panel for converting a voice signal into a digital signal according to claim 1, wherein: the second chip is electrically connected with an LED lamp, and when the power supply module (1) has a difference with a defined voltage, the LED lamp displays different colors.

6. The patch panel for converting a voice signal into a digital signal according to claim 1, wherein: the chip model of the MCU module (5) is STM32F103, the model of the first chip is LTC2943, and the model of the second chip is SLM 6900.

7. The patch panel for converting a voice signal into a digital signal according to claim 1, wherein: the models of the first MOS tube and the second MOS tube are AO4459, and the model of the third MOS tube is FDN 358P.

8. The patch panel of claim 1, wherein the patch panel is configured to convert a voice signal into a digital signal, and wherein: pins 1 and 2 of the first chip are connected with a second resistor R206, and the first chip is connected with the MCU module (5) in a communication mode of I2C.

9. The patch panel of claim 1, wherein the patch panel is configured to convert a voice signal into a digital signal, and wherein: the chip model of the power supply module (1) is XL1509, the input end of the power supply module is connected with a first electrolytic capacitor E28, a second electrolytic capacitor E29 and a first capacitor C147, and the output end of the power supply module is connected with an inductor L4, a third electrolytic capacitor E31 and a second capacitor C145.