Gas alarm controller with safe and trusted computing module

Abstract

The utility model discloses a gas alarm controller with a safe and trusted computing module. The gas alarm controller comprises a master control module, and a TPCM trusted module, a wireless communication module, a wired communication module, a power supply module and a display module which are respectively connected with the master control module. According to the utility model, a trusted operation environment is established for the gas alarm controller, and the trusted environment is actively and dynamically monitored, so that the trusted measurement and control of the whole life cycle of a computer are realized, and the problem of data information safety caused by the fact that an enterprise is easily attacked by a network is effectively solved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field gas detection technology, more particularly to a gas alarm controller with a secure and reliable computing module. BACKGROUND

[0002] In the process of enterprise digitalization and intelligentization, with the application of new technologies such as Internet of Things, mobile Internet, cloud computing and big data, enterprise information and data security are facing unprecedented challenges. The monitoring data of various gas environments in the production process of enterprises is important data information, and once the data is invaded during processing and storage, the security of data resources will be seriously threatened. Under such background, secure and reliable computing technology provides basic hardware support through its unique trust root technology and comprehensive monitoring of hardware devices, has multiple security functions, and has significant advantages compared with other security methods, providing important protection for various data and information security in enterprise operation.

[0003] At present, most of the existing gas alarm controllers do not have the function of actively providing data security protection for gas alarm controllers from the hardware level, which makes the various gas monitoring data information in the production and operation process of enterprises vulnerable to attack, causing data and information leakage risk. CONTENT OF THE UTILITY MODEL

[0004] The utility model is proposed to solve the problem of the existing technology that various gas monitoring data information in the production and operation process of enterprises is vulnerable to attack, causing data and information leakage risk, and the purpose is to provide a gas alarm controller with a secure and reliable computing module.

[0005] The utility model is realized by the following technical solutions:

[0006] A gas alarm controller with a secure and reliable computing module, comprising a main control module and a TPCM trusted module, a wireless communication module, a wired communication module, a power module and a display module connected with the main control module respectively; the main control module comprises a main chip; the TPCM trusted module comprises a TPCM trusted chip; the wired communication module comprises a CAN communication circuit and an RS485 communication circuit; the wireless communication module is a 4G communication module or a 5G communication module.

[0007] In the above technical solution, the model of the main chip of the main control module is Fengtenglong E2000D.

[0008] In the above technical solution, the model of the TPCM trusted chip of the TPCM trusted module is TPCM-EOS-ST4.

[0009] In the technical scheme, the TPCM_SPI port of the TPCM trusted module is connected with the SPIM0 port of the main chip of the main control module; the TPCM_USB port of the TPCM trusted module is connected with the USB2 pin of the main chip of the main control module; the TPCM_USB port of the TPCM trusted module is connected with the central processing unit of the TPCM trusted module through a switch chip; and the TPCM_UART0 port of the TPCM trusted module is connected with the URAT3 pin of the main chip of the main control module.

[0010] In the technical scheme, the TPCM trusted chip supply voltage is 3.3V, and the 58th pin of the TPCM trusted chip is connected with the 3.3V output end of the power module.

[0011] In the technical scheme, the model of the 5G communication module is RG2000_CN_MiniPcie.

[0012] In the technical scheme, the CAN communication circuit is used for data communication between the main control module in the gas alarm controller with the safety trusted computing module and an external detector; the CAN communication circuit comprises a communication chip with a model of ISO1050DUBR, a microcontroller with a model of RA2A1, and three groups of power relays with a model of G5LE-14-DC5.

[0013] In the technical scheme, the RS485 communication circuit is used for connecting an external display of the gas alarm controller with the safety trusted computing module; the RS485 communication circuit comprises a communication chip with a model of SP3485E2212LK40033; and the communication chip with the model of SP3485E2212LK40033 is used to realize communication between the display module and the main control module.

[0014] In the technical scheme, the output voltage of the power module is 24V; the power module comprises a first power module, a second power module and a third power module.

[0015] The first power module comprises a first power chip with a model of XL1507-ADJE1 and a display power circuit; a DC24V voltage is converted into a 12V voltage by the power chip with the model of XL1507-ADJE1 and the power circuit, and the 12V voltage is used to provide voltage for the display.

[0016] The second power module comprises a second power chip with a model of XL1507-ADJE1 and a 5V power circuit; a DC24V voltage is converted into a 5V voltage by the second power chip with the model of XL1507-ADJE1 and the 5V power circuit, and the 5V voltage is used to provide voltage for a relay output circuit and a wireless communication module.

[0017] The III power supply module comprises a III power supply chip of model AMS1117-3.3 and a 3.3V power supply circuit; the 5V module is converted into 3.3V voltage by the III power supply chip of model AMS1117-3.3 and the 3.3V power supply circuit, and the working voltage is provided for the CAN communication circuit of the main control module and the wired communication module.

[0018] In the technical scheme, the sound-light indication alarm module is connected with the main chip of the main control module through a GPIO4_14 pin.

[0019] The utility model discloses beneficial effect is:

[0020] The utility model discloses a gas alarm controller with safe and credible calculation module establishes the credible operation environment for gas alarm controller, and carries out initiative dynamic monitoring to credible environment, realizes the credibility measurement and control of computer full life cycle, effectively solves the data information security problem of enterprise vulnerable to network attack. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is the structural schematic diagram of the utility model;

[0022] Figure 2 It is the partial circuit diagram of the utility model that main control module is connected with other module;

[0023] Figure 3 It is another partial circuit diagram of the utility model that main control module is connected with other module;

[0024] Figure 4 It is the circuit schematic diagram of TPCM credible chip TPCM SPI, TPCM USB, TPCM UART0 port in the utility model;

[0025] Figure 5 It is the circuit diagram between TPCM credible chip and power module in the utility model;

[0026] Figure 6 It is the circuit diagram of CAN communication circuit in the utility model;

[0027] Figure 7 It is the circuit diagram of power module in the utility model;

[0028] Figure 8 It is the connection circuit diagram between sound-light indication alarm module and main control module in the utility model.

[0029] Among them:

[0030] 1, main control module;

[0031] 2, TPCM credible module;

[0032] 3. Wireless communication module;

[0033] 4. Wired communication module;

[0034] 5. Audible and visual alarm module;

[0035] 6. Power supply module;

[0036] 7. Display module.

[0037] For those skilled in the art, other related figures can be obtained from the above figures without any creative effort. Detailed Implementation

[0038] To enable those skilled in the art to better understand the technical solution of this utility model, the technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0039] Example 1

[0040] like Figures 1-8 As shown, a gas alarm controller with a secure and reliable computing module includes a main control module 1 and a TPCM trusted module 2, a wireless communication module 3, a wired communication module 4, a power supply module 6, and a display module 7, which are respectively connected to the main control module 1.

[0041] The main control module 1 includes a main chip of model Feiteng Tenglong E2000D;

[0042] The TPCM trusted module 2 includes a TPCM trusted chip, and the model of the TPCM trusted chip is TPCM-EOS-ST4;

[0043] The TPCM trusted chip is electrically connected to the main chip of the main control module 1 and the power supply module, specifically:

[0044] The TPCM_SPI port of the TPCM trusted chip in the TPCM trusted module 2 is connected to the SPIM0 port of the main chip in the main control module 1. Specifically: the TPCM_SPI_CS port of the TPCM trusted chip is connected to the SPIM0_CSN0 pin of the main chip in the main control module 1; the TPCM_SPI_CLK port of the TPCM trusted chip is connected to the SPIM0_SCLK pin of the main chip in the main control module 1; the TPCM_SPI_MOSI port of the TPCM trusted chip is connected to the SPIM0_SCLK pin of the main chip in the main control module 1; and the TPCM_SPI_MISO port of the TPCM trusted chip is connected to the SPIM0_MOSI pin of the main chip in the main control module 1. When the main control module 1 starts up, it measures the execution environment of the platform device to ensure the security of the system startup environment.

[0045] The TPCM_USB port of the TPCM trusted chip of the TPCM trusted module 2 is connected with the USB2 pin of the main chip of the main module 1, specifically: the TPCM_USB_P port of the TPCM trusted chip is connected with the USB2_P4_DP pin of the main chip of the main module 1; the TPCM_USB_N port of the TPCM trusted chip is connected with the USB2_P4_DM pin of the main chip of the main module 1; the TPCM_USB port of the TPCM trusted chip is used to dynamically measure the application program and the execution environment after the operating system of the main module 1 is loaded, so as to guarantee the security of the application program execution environment and operation; in addition, when the external management device accesses the TPCM_USB port of the TPCM trusted module 2, the TPCM_USB port of the TPCM trusted chip is also used to perform trusted management on the external device.

[0046] The TPCM_USB port of the TPCM trusted chip of the TPCM trusted module 2 is connected with the main chip of the main module 1 through a switch chip, and the model of the switch chip is TS3USB221ARSER, specifically: the TPCM_USB_P port of the TPCM trusted chip is connected with the 1D- pin of the switch chip, and the D- pin of the switch chip is connected with the USB_D- pin of the main chip of the main module 1; the TPCM_USB_N port of the TPCM trusted module 2 is connected with the 1D+ pin of the switch chip, and the D+ pin of the switch chip is connected with the USB_D+ pin of the main chip of the main module 1.

[0047] The TPCM_UART0 port of the TPCM trusted chip of the TPCM trusted module 2 is connected with the URAT3 pin of the main chip of the main module 1, specifically: the TPCM_UART0_TXD port of the TPCM trusted chip is connected with the URAT3_TXD / SPIM0_RXD1 pin of the main chip of the main module 1; the TPCM_UART0_RXD port of the TPCM trusted chip is connected with the URAT3_TXD / SPIM0_TXD1 pin of the main chip of the main module 1; the TPCM_UART0 port of the TPCM trusted chip is used to perform trusted log and warning output.

[0048] The TPCM trusted chip is connected with a power module, as shown in Figure 5 Specifically: the TPCM trusted chip has a 3.3V power supply voltage, and is connected with the 3.3V output end of the power module through the 58th +V3.3V pin to realize power supply.

[0049] The wireless communication module 3 is a 4G communication module or a 5G communication module.

[0050] In this embodiment, the wireless communication module 3 is a 5G communication module; the model of the 5G communication module is RG2000 CN MiniPcie; the specific connection of the 5G communication module and the main chip of the host control module 1 is that the 5G UART D TXD port of the 5G communication module is connected with the MIO14 A pin of the main chip of the host control module 1; the 5G UART DRXD port of the 5G communication module is connected with the MIO14 B pin of the main chip of the host control module 1; the 5G UART S TXD port of the 5G communication module is connected with the MIO15 A pin of the main chip of the host control module 1; the 5G UART S RXD port of the 5G communication module is connected with the MIO15 B pin of the main chip of the host control module 1; the 5G RST port of the 5G communication module is connected with the MDIO1 / GPIO3 8 pin of the main chip of the host control module 1; the 5G WakeUoIn port of the 5G communication module is connected with the MDCO / GPIO3 9 pin of the main chip of the host control module 1;

[0051] The wired communication module 4 includes a CAN communication circuit and an RS485 communication circuit;

[0052] The CAN communication circuit is used for the host control module 1 in the gas alarm controller with a secure and trusted computing module to communicate with external detector signal data, and to control the action of the relay according to the alarm condition; the CAN communication circuit includes a communication chip with the model of ISO1050DUBR, a microcontroller with the model of RA2A1 and three groups of power relays with the model of G5LE-14-DC5;

[0053] Specifically, the CAN communication circuit includes the communication chip of ISO1050DUBR connected with the main chip of the host control module 1, and the operational amplifier LM324 and the inductive filter connected with the communication chip of ISO1050DUBR; the inductive filter is connected with the pins of P304 / CTX0 A and P303 / CRX0 A of the microcontroller with the model of RA2A1 through the connector; the microcontroller with the model of RA2A1 is connected with the three groups of power relays through the pins of P402, P401 and P400, and the pins of P100 / ANSD0-P100 and P101 / ANSD1 of the microcontroller with the model of RA2A1 are used as the external detector signal data input port and are connected with the signal input circuit respectively; the CHINPUT1 port is connected with P3 through the plug-in terminal, thereby forming a complete CAN communication circuit;

[0054] The input signal of the external gas detector is a 4-20mA current signal, the external 4-20mA current signal is input to the common mode inductor and operational amplifier at P1 and then enters the CAN communication chip, is connected to the CAN0_RX / MIO0_A and CAN0_RX / MIO0_B ports of the main chip of the main control module 1 through the CAN communication chip, and after being processed by the main chip of the main control module 1, the gas concentration detection value is output and displayed, and a control signal is issued according to the concentration value and is output to control the action through the relay.

[0055] The RS485 communication circuit is used for connecting the display module 7 of the gas alarm controller with the safe and reliable calculation module, one end of the RS485 communication circuit is connected with the main chip of the main control module 1 through the MIO6_A and MIO6_B pins, the other end is connected with the display module 7 through the connector, the communication with the main control module 1 can be realized through the display module 7, so that the operation setting of the gas alarm controller with the safe and reliable calculation module and the display of the detection information are completed.

[0056] The output voltage of the power module 6 is 24V; the power module 6 includes a No. I power supply module, a No. II power supply module and a No. III power supply module.

[0057] The No. I power supply module includes a No. I power chip with the model of XL1507-ADJE1 and a display power circuit; the DC24V voltage generates a 12V voltage through the power chip with the model of XL1507-ADJE1 and the power circuit, and the 12V voltage provides the voltage for the display;

[0058] The No. II power supply module includes a No. II power chip with the model of XL1507-ADJE1 and a 5V power circuit; the DC24V voltage generates a 5V voltage through the No. II power chip with the model of XL1507-ADJE1 and the 5V power circuit, and the 5V voltage provides the voltage for the output circuit of the signal output module, the relay and the wireless communication module;

[0059] The No. III power supply module includes a No. III power chip with the model of AMS1117-3.3 and a 3.3V power circuit; the 5V module is converted into a 3.3V voltage through the No. III power chip with the model of AMS1117-3.3 and the 3.3V power circuit, and the 3.3V voltage provides the working voltage for the CAN communication circuit of the main control module 1 and the wired communication module 4.

[0060] The display module 7 includes a 7-inch liquid crystal touch display screen.

[0061] The audible and visual indication alarm module 5 is connected with the main chip of the main control module 1 through the GPIO4_14 pin, and the audible alarm is issued according to the instruction of the main control module, and the specific circuit connection is as shown in Figure 8

[0062] ​The use method of the utility model discloses

[0063] Signal output module is used for receiving the gas concentration data signal detected by the gas detector, and the detection signal is transmitted to the main control module 1 through the CAN bus communication circuit of wired communication module 4 after being processed through the output circuit, and the gas detection data can be transmitted to the display screen of display module 7 through the RS485 communication circuit of wired communication module 4 after the operation processing of main control module 1, and can also be transmitted to the general control room through the wireless communication module, realizing the remote management and storage of detection data; The sound and light indicating alarm module 5 simultaneously alarms; The main control module 1 can control the relevant equipment according to the controller alarm condition.

[0064] When starting, the TPCM trusted module starts before the main control module 1, and if malicious tampering and other security problems are found, the main control module 1 is prevented from starting. After the operating system is loaded, and during the application software running process, the TPCM trusted module actively monitors the trusted running environment, until the system is shut down.

[0065] The gas alarm controller can receive the signal of the detection probe, display the measurement value in real time, and send out an audible and light alarm when the measurement value reaches the set alarm value, and output a control signal to prompt the operator to take safety measures in time, or start the control equipment connected in advance through the relay linkage. The gas alarm controller has a secure and trusted computing module, which is embedded in the hardware layer and cooperates with the corresponding physical interface path design to establish a trusted running environment for the gas alarm controller, and actively protects the standby, start and running stages of the gas alarm controller, and provides double protection of production and data security for enterprises.

[0066] The applicant declares that the above description is only a specific embodiment of the utility model, but the protection scope of the utility model is not limited to this, and the skilled person in the art should understand that any change or replacement within the technical range disclosed by the utility model can be easily thought of by any person skilled in the art, and falls within the protection scope and disclosure range of the utility model.

Claims

1. A gas alarm controller with a secure trusted computing module, characterized by: The application relates to a gas alarm controller with a safety trusted computing module, which comprises a main control module (1) and a TPCM trusted module (2), a wireless communication module (3), a wired communication module (4), a power module (6) and a display module (7) which are connected with the main control module (1) respectively. The main control module (1) comprises a main chip. The TPCM trusted module (2) comprises a TPCM trusted chip. The wired communication module (4) comprises a CAN communication circuit and an RS485 communication circuit. The wireless communication module (3) is a 4G communication module or a 5G communication module.

2. The gas alarm controller with secure trusted computing module of claim 1, wherein: The model of the main chip of the main control module (1) is Fengtengtenglong E2000D.

3. The gas alarm controller with secure trusted computing module of claim 1, wherein: The model of the TPCM trusted chip of the TPCM trusted module (2) is TPCM-EOS-ST4.

4. The gas alarm controller with secure trusted computing module of claim 3, wherein: The TPCM_SPI port of the TPCM trusted module (2) is connected with the SPIM0 port of the main chip of the main control module (1); the TPCM_USB port of the TPCM trusted module (2) is connected with the USB2 pin of the main chip of the main control module (1); the TPCM_USB port of the TPCM trusted module (2) is connected with the central processor of the TPCM trusted module (2) through a switch chip; and the TPCM_UART0 port of the TPCM trusted module (2) is connected with the URAT3 pin of the main chip of the main control module (1).

5. The gas alarm controller with secure trusted computing module of claim 1, wherein: The TPCM trusted chip is supplied with a voltage of 3.3V, and the 58th +V3.3V pin of the TPCM trusted chip is connected with the 3.3V output end of the power module (6).

6. The gas alarm controller with secure trusted computing module of claim 1, wherein: The model of the 5G communication module is RG2000_CN_MiniPcie.

7. The gas alarm controller with secure trusted computing module of claim 1, wherein: The CAN communication circuit is used for the signal data communication between the main control module (1) in the gas alarm controller with the safety trusted computing module and external detectors; the CAN communication circuit comprises a communication chip with the model of ISO1050DUBR, a microcontroller with the model of RA2A1 and three groups of power relays with the model of G5LE-14-DC5.

8. The gas alarm controller with secure trusted computing module of claim 1, wherein: The RS485 communication circuit is used for connecting the external display of the gas alarm controller with the safety trusted computing module; the RS485 communication circuit comprises a communication chip with the model of SP3485E2212LK40033; the communication between the main control module (1) and the display module (7) is realized through the communication chip with the model of SP3485E2212LK40033.

9. The gas alarm controller with secure trusted computing module of claim 1, wherein: The output voltage of the power module (6) is 24V; the power module (6) comprises a No.I power supply module, a No.II power supply module and a No.III power supply module. The No.I power supply module comprises a No.I power supply chip with the model of XL1507-ADJE1 and a display power circuit; a DC24V voltage generates a 12V voltage through the power supply chip with the model of XL1507-ADJE1 and the power circuit, and the display is provided with the voltage. The second power supply module comprises a second power supply chip of XL1507-ADJE1 type and a 5V power supply circuit; a DC 24V voltage generates a 5V voltage through the second power supply chip of XL1507-ADJE1 type and the 5V power supply circuit, and the 5V voltage provides a voltage for a relay output circuit and a wireless communication module; The third power supply module comprises a third power supply chip of AMS1117-3.3 type and a 3.3V power supply circuit; the 5V module is converted into a 3.3V voltage through the third power supply chip of AMS1117-3.3 type and the 3.3V power supply circuit, and the 3.3V voltage provides a working voltage for a CAN communication circuit of the main control module (1) and the wired communication module (4).

10. The gas alarm controller with secure trusted computing module of claim 1, wherein: The sound-light indication alarm module (5) is connected with the main chip of the main control module (1) through a GPIO4_14 pin.

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