CN217360605U

CN217360605U - Encryption remote measurement controller and encryption remote measurement terminal

Info

Publication number: CN217360605U
Application number: CN202221144522.5U
Authority: CN
Inventors: 肖廷亭; 韩君; 张焕文; 伍俊东; 蒲芳波
Original assignee: Chengdu Wanjiang Gangli Technology Co ltd
Current assignee: Chengdu Wanjiang Gangli Technology Co ltd
Priority date: 2022-05-13
Filing date: 2022-05-13
Publication date: 2022-09-02
Anticipated expiration: 2032-05-13

Abstract

The utility model discloses an encrypt remote measurement controller and encrypt remote measurement terminal, include: the system comprises an encryption chip, a Micro Control Unit (MCU), a network communication unit and a voltage reduction chip, wherein the encryption chip, the voltage reduction chip, the network communication unit and the MCU are all integrated on a PCB substrate; the voltage reduction chip carries out voltage reduction processing on the external voltage, wherein one path of voltage is adjusted to the proper voltage range of the encryption chip and the micro control unit MCU, and the other path of voltage is adjusted to the proper voltage range of the network communication unit; the encrypted telemetry controller is mounted within a housing of the encrypted telemetry terminal. The utility model discloses utilize little the control unit MCU to be used for receiving the data collection, and carry out the preliminary treatment to the data collection, then will handle the data collection transmission after and carry out data encryption for encryption chip, form the encrypted data package and carry out teletransmission, improved the transmission security of data collection, the remote measurement data who has solved water conservancy data suffers the technical problem of stealing or falsifying easily in transmission process.

Description

Encryption remote measurement controller and encryption remote measurement terminal

Technical Field

The utility model belongs to the technical field of water conservancy industry intelligent instrument and meter, in particular to encrypt remote measurement controller.

Background

The application of the password is spread in various fields of social economy and life, water conservancy is taken as the key industry field of key information infrastructure, once key business application is illegally obtained and accessed, important business data are stolen and damaged, the national economic safety and public benefits are possibly seriously harmed, and great loss is brought to the nation and people. The password security technology can realize the functions of counterfeit prevention, theft prevention, tampering prevention, cheating prevention, repudiation prevention and the like, plays the important roles of a security guard and a gene key in a network space, and is highly matched with the requirements of the water conservancy industry. Therefore, the data encryption for important data in the water conservancy industry is very important. At present, domestic remote telemetry terminals do not have the function of encrypting data acquired by sensors, and remote measurement data of water conservancy data is easy to steal or tamper in the transmission process, so that certain influence is caused on water conservancy information safety or disaster prevention and reduction work.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an encrypt remote measurement controller, it can be installed in the remote measurement terminating machine, through encrypting the processing with the data collection, transmits the encrypted data through communication module again, has solved the easy technical problem who is stolen or falsify of data collection in remote transmission process.

In order to achieve the above purpose, the utility model adopts the technical scheme that: an encrypted telemetry controller, comprising:

the encryption chip is used for encrypting the acquired hydrological data to obtain an encrypted data packet;

the micro control unit MCU is used for carrying out primary processing on the received hydrological data;

a network communication unit for receiving or transmitting data;

the voltage reduction chip is used for adjusting the external voltage to an adaptive voltage range corresponding to the encryption chip, the micro control unit MCU and the voltage reduction chip;

the encryption chip, the voltage reduction chip, the network communication unit and the micro control unit MCU are all integrated on the PCB substrate; the voltage reduction chip carries out voltage reduction processing on the external voltage, wherein one path of voltage is adjusted to the proper voltage range corresponding to the encryption chip and the micro control unit MCU, and the other path of voltage is adjusted to the proper voltage range corresponding to the network communication unit.

Furthermore, the voltage reduction chip is connected with a linear voltage stabilization chip, and the linear voltage stabilization chip is respectively connected with the network communication unit and the micro control unit MCU.

Furthermore, the voltage reduction chip is connected with a Schottky diode, and the reverse electromotive force of the inductive load is prevented from damaging the voltage reduction chip through the Schottky diode.

Further, the network communication unit comprises a network communication module or/and a GPRS communication module.

Further, still include the data acquisition interface, the data acquisition interface includes at least one interface in RS232 interface, the RS485 interface, the RS232 interface is connected with the RS232 chip, the RS485 interface is connected with the 485 chip.

Furthermore, at least one interface of an expansion I/O interface, an IIC/SPI interface and an expansion I/O interface is integrated on the PCB substrate.

Furthermore, one or more interfaces of an expansion I/O interface, an IIC/SPI interface and an expansion I/O interface are integrated on the PCB substrate.

Furthermore, a clock module is integrated on the PCB substrate.

Further, a TTL-to-USB interface is integrated on the PCB substrate.

An encrypted telemetry terminal, the encrypted telemetry controller being mounted within a housing of the encrypted telemetry terminal.

Compared with the prior art, the utility model has the advantages of:

1. the utility model discloses utilize micro control unit MCU to be used for receiving the data collection to carry out primary processing to the data collection, then transmit the data collection after handling to the encryption chip and carry out the data encryption; the collected data is stolen or tampered in the remote transmission process, so that the transmission safety of the collected data can be improved.

2. The utility model discloses with the integration of multiple components and parts on a PCB base plate, realize the function set of each components and parts, install it on the telemetering measurement terminating machine, can reduce the whole size of equipment.

3. The utility model discloses a controller has integrateed a plurality of data acquisition interfaces, can connect different data acquisition device to and adaptation data acquisition device's increase or replacement satisfies the actual monitoring needs.

Drawings

FIG. 1 is a schematic view of the present invention;

fig. 2 is a schematic structural diagram of the present invention.

In the figure, 1, a PCB substrate, 2, 485 chips, 3, RS485 interfaces, 4, TTL-to-USB interfaces, 5, DC5V lead ports, 6, a power inductor, 7, a Schottky diode, 8, an IDC power interface, 9, a DC-DC voltage reduction chip, 10, 4G communication modules, 11, RS232 chips, 12, RS232 interfaces, 13, RJ45 interfaces, 14, extended I/O interfaces, 15, IIC \ SPI interfaces, 16, extended I/O interfaces, 17, a clock module, 18, DC3.3V lead ports, 19, encryption chips, 20, a micro control unit MCU, 21 and an SWD debugging interface.

Detailed Description

To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined to clearly and completely describe the technical solutions of the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Various modifications and changes may occur to those skilled in the art. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art. The invention will be further described with reference to the accompanying drawings and specific embodiments.

Example 1

Referring to fig. 1, an encrypted telemetry controller, comprising: the encryption chip, step-down chip, the network communication unit, little the control unit MCU, the control unit MCU is connected with the encryption chip respectively, the step-down chip carries out step-down processing with external voltage, wherein voltage adjustment is to encryption chip and little the control unit MCU's suitable electric range all the way, voltage adjustment is to the network communication unit suitable electric range all the way in addition. The IDC power supply interface and the data acquisition interface are also included; the encryption chip, the voltage reduction chip, the network communication unit, the micro control unit MCU, the IDC power interface and the data acquisition interface are integrated on the PCB substrate; the encryption chip is used for encrypting hydrologic acquisition data; the voltage reduction chip is used for adjusting the external voltage to the proper voltage range corresponding to the encryption chip, the micro control unit MCU and the voltage reduction chip; the network communication unit is connected with the encryption chip to realize remote wireless transmission of encrypted data; the micro control unit MCU is used for receiving hydrologic acquisition data, primarily processing the hydrologic acquisition data, and then transmitting the processed hydrologic acquisition data to the encryption chip for data encryption to obtain an encrypted data packet; the IDC power interface is used for externally connecting a power supply to provide electric energy for the controller. The data acquisition interface can be external data acquisition device, and data acquisition device can be one or more in pressure fluviograph, water quality monitoring appearance, pulse rain gauge, pulse water gauge, the code fluviograph, temperature sensor, humidity transducer, wind sensor, soil moisture content sensor, chlorine residue sensor, turbidity sensor, gate aperture appearance, flow sensor, velocity of flow sensor, voltage sensor, current sensor, rainfall sensor, pressure sensor. In addition, it has SWD debugging interface 21 to integrate on PCB base plate 1, and through the external debugging equipment of SWD debugging interface 21, it is right the utility model discloses an encryption telemetering controller carries out the programming or the debugging of procedure.

Referring to fig. 1 and fig. 2, specifically, the voltage-reducing chip adopts a DC-DC voltage-reducing chip 9 externally connected with a DC9-18V power supply, so as to provide a reliable and stable power supply for the whole encryption telemetry controller. The micro control unit MCU20 adopts an ST company M4 series core processor. The internal interfaces are rich, the number of pins is large, the dominant frequency reaches 168M, and the processing speed is high. Various digital interfaces are connected with external devices through the processor. The encryption algorithm integrated in the chip of the encryption chip 19 supports the SM2, SM3 and SM4 commercial encryption algorithms, and also supports international common encryption algorithms such as 3DES, AES, RSA, ECDSA and SHA-1/256/384/512, and the data encryption algorithm can be flexibly changed according to the user requirements. The encryption chip 19 is connected with the MCU20 by an SPI interface, and data encryption and decryption operations are carried out by calling through an internal API interface.

In some alternative embodiments, the PCB substrate 1 further has a DC lead port integrated thereon. In the present application, DC outlet 5 is used as DC5V outlet 5. It should be understood that the present application may also integrate DC lead ports for other voltage values on the PCB substrate 1. In the description of the present application, the DC port voltage value is quantified only for convenience of description and simplification of the description, but not for indicating or implying that the device or element referred to must have the specific value, and for the selection of the voltage value, it can be adaptively selected according to a specific use scenario to integrate the corresponding DC port on the PCB substrate 1, and thus, it cannot be understood as a limitation of the present application.

Further, in order to stabilize the voltage of the encryption telemetry controller, the DC-DC voltage reduction chip 9 is further connected with a linear voltage stabilization chip, and then the network communication unit and the micro control unit MCU20 are respectively connected through the linear voltage stabilization chip.

The working principle is as follows: the encryption telemetering controller is externally connected with a DC9-18V adaptive power supply through an IDC power interface 8, and is connected to a DC-DC voltage reduction chip 9 through a filter capacitor and a reverse diode, after the DC-DC voltage reduction chip 9 is subjected to voltage reduction through the internal principle of the DC-DC voltage reduction chip, the DC-DC voltage reduction chip generates DC5V voltage through the product of an accurate divider resistor and the chip reference voltage, and electric energy is stored through a power shielding inductor and a capacitor to supply power for the subsequent DC 5V. The DC5V voltage is regulated to the proper electric range of the encryption chip 19 and the micro control unit MCU20 through the linear voltage regulation chip to supply power to the encryption chip 19 and the micro control unit MCU 20; and the other DC-DC voltage reduction chip 9 adjusts the voltage to the proper electric range of the network communication unit, and supplies power to the network communication unit after passing through the power inductor 6 and the energy storage capacitor. Hydrology data acquisition that data acquisition device gathered transmits for little the control unit MCU20, little the control unit MCU20 is stored original hydrology data acquisition, the retrieval, processing, preliminary processing such as transform, then give encryption chip 19 with hydrology data acquisition after handling again, encryption chip 19 encrypts the hydrology data acquisition after transmitting to the platform gateway through the network communication unit and deciphers, perhaps receive the encryption command data that the platform issued, with the safe transmission that realizes hydrology data acquisition.

With continued reference to fig. 2, in some alternative embodiments, the network communication unit includes a network communication module or a GPRS communication module, or both the network communication module and the GPRS communication module are integrated on the PCB substrate 1. The network communication module adopts an RJ45 interface 13, the GPRS communication module adopts a 4G communication module 10, and naturally, communication modules such as 2G/3G/5G and the like can also be adopted according to the requirement of network communication or objective communication conditions. The DC-DC voltage reduction chip 9 is respectively connected with the network communication module and the GPRS communication module. In some specific embodiments, the working voltage of the encryption chip 19 and the micro control unit MCU20 is DC3.3V, the encryption chip and the micro control unit MCU20 are connected through a DC3.3V lead port 18, the working voltage of the 4G communication module 10 is DC3.8V, the encryption telemetry controller is externally connected with a DC9-18V adaptive voltage transformer through an IDC power interface 8, the adaptive voltage transformer power voltage is converted into DC5V through a DC-DC voltage reduction chip 9, and one of the DC5V voltages is regulated to DC3.3V through a linear voltage regulation chip to supply power to the encryption chip 19 and the micro control unit MCU; and adjusting the other path of voltage to DC3.8V, and supplying power to the 4G communication module 10 after the power inductor 6 and the energy storage capacitor.

In some optional embodiments, the power inductor 6 is connected to the PH end of the DC-DC voltage-reducing chip 9, and the required voltage is obtained by multiplying the output reference voltage by the voltage-dividing resistor through PWM adjustment inside the DC-DC voltage-reducing chip 9. Further, a schottky diode 7 is connected, and the reverse electromotive force of the inductive load is prevented from damaging the DC-DC buck chip 9 by the schottky diode 7.

In some optional embodiments, the data acquisition interface includes at least one of an RS232 interface 12 and an RS485 interface 3, where the RS232 interface 12 is connected to the RS232 chip 11, and the RS485 interface 3 is connected to the 485 chip 2. Can carry out the adaptability according to the type of the data acquisition device interface that needs to connect and select, set up a plurality of the same or different interfaces, like this the utility model discloses an encrypt remote measurement controller and can connect a plurality of data acquisition device simultaneously, carry out the collection of a plurality of hydrology data simultaneously. It should be noted that, UART interfaces of commonly used single-chip microcomputers are all TTL levels, and level conversion is performed through the RS232 chip 11 to convert the UART interfaces into the RS232 interfaces 12. Similarly, the 485 chip 2 converts the singlechip UART interface into the RS485 interface 3, and digital signal transmission is carried out through the voltage signal of the differential bus.

In the specific process, the data acquisition device connected with the RS232 interface 12 or the data acquisition device connected with the RS485 interface 3 transmits acquired hydrologic acquisition data to the micro control unit MCU20 for preliminary data processing, and then the acquired hydrologic acquisition data is encrypted by the encryption chip 19 and then transmitted to the platform gateway through the network communication unit for decryption.

In some optional embodiments, one or more of the expansion I/O interface 14, the IIC/SPI interface 15, and the expansion I/O interface 16 may be further integrated on the PCB substrate 1. The relay is used for controlling an external relay or an intermediate relay to carry out on-off control on the electric equipment; and a triode or an MOS tube can be driven to carry out LED display control. The IIC/SPI interface 15 can be connected with an external memory EEPROM, Flash and the like.

In some alternative embodiments, the PCB substrate 1 may further have a clock module 17 integrated thereon. The clock module 17 primarily provides a reliable time base for the telemetry terminal. The clock module 17 is responsible for RTC clock power supply to keep the current clock correct. The server performs timing without time, so that the time synchronism is satisfied.

Further, in order to adapt to more data transmission ports, a TTL to USB interface 4 may be integrated on the PCB substrate 1. The device can perform device Japanese word output, device upgrading, related debugging information output and the like through the USB interface.

Example 2

The encryption telemetering terminal is arranged in a shell of the encryption telemetering terminal, and can be combined with other parts or electronic components of the encryption telemetering terminal to realize acquisition and encryption transmission of hydrological data.

Compared with the prior art, encrypt remote measurement controller through having integrateed encryption chip 19 in order to realize the transmission of encrypting to hydrology data collection. Secondly, the DC-DC voltage reduction chip 9 is integrated on the PCB substrate 1, the external voltage is adjusted to the proper range of the encryption chip 19, the micro control unit MCU20 and the network communication unit, and the DC-DC voltage reduction chip 9 is protected by the schottky diode 7. The technology of the application can support various communication modes and ensure the stability of data transmission. Furthermore, encrypt the interface that can integrate a plurality of differences on the telemetering controller, can connect the data acquisition device of multiple different interfaces to realize that multiple hydrology collection data carries out synchronous collection transmission. The environmental adaptability, expandability and flexibility of the encryption telemetry controller are improved. In prior art, functional module is for separately constructing, and the utility model discloses an on a PCB base plate 1 with a plurality of function components and parts are integrated, install the encryption controller on the telemetering measurement terminating machine, realized the high integration of telemetering measurement terminating machine, reduce the overall dimension of telemetering measurement terminating machine, under the prerequisite of improve equipment data transmission's security, privacy, promote the miniaturized, intelligent development of telemetering measurement terminating machine.

Claims

1. An encrypted telemetry controller, comprising:

a network communication unit for receiving or transmitting data;

the voltage reduction chip is used for adjusting the external voltage to the proper voltage range corresponding to the encryption chip, the micro control unit MCU and the voltage reduction chip;

the encryption chip, the voltage reduction chip, the network communication unit and the micro control unit MCU are all integrated on the PCB substrate; the voltage reduction chip carries out voltage reduction processing on the external voltage, wherein one path of voltage is adjusted to an appropriate voltage range corresponding to the encryption chip and the micro control unit MCU, and the other path of voltage is adjusted to an appropriate voltage range corresponding to the network communication unit.

2. The encrypted telemetry controller of claim 1, wherein: the voltage reduction chip is connected with a linear voltage stabilization chip, and the linear voltage stabilization chip is respectively connected with the network communication unit and the micro control unit MCU.

3. The encrypted telemetry controller of claim 1, wherein: the voltage reduction chip is connected with a Schottky diode, and the reverse electromotive force of the inductive load is prevented from damaging the voltage reduction chip through the Schottky diode.

4. The encrypted telemetry controller of claim 1, wherein: the network communication unit comprises a network communication module or/and a GPRS communication module.

5. The encrypted telemetry controller of claim 1, wherein: still include the data acquisition interface, the data acquisition interface includes at least one interface in RS232 interface, the RS485 interface, the RS232 interface is connected with the RS232 chip, the RS485 interface is connected with the 485 chip.

6. The encrypted telemetry controller of claim 1, wherein: at least one interface of an expansion I/O interface, an IIC/SPI interface and an expansion I/O interface is further integrated on the PCB substrate.

7. The encrypted telemetry controller of claim 6, wherein: one or more interfaces among an expansion I/O interface, an IIC/SPI interface and an expansion I/O interface are integrated on the PCB substrate.

8. The encrypted telemetry controller of claim 1, wherein: and a clock module is integrated on the PCB substrate.

9. The encrypted telemetry controller of claim 1, wherein: and a TTL-to-USB interface is integrated on the PCB substrate.

10. An encrypted telemetry terminal to which the encrypted telemetry controller described in claims 1 to 9 is applied, characterized in that: the encrypted telemetry controller is mounted within a housing of the encrypted telemetry terminal.