Acquisition terminal with data transmission encryption function

Abstract

The utility model relates to an acquisition terminal with a data transmission encryption function, which comprises a communication encryption device in hot plug connection with a terminal body, the downstream of a PoE input network port module on an internal main control board of the communication encryption device is divided into two paths, the other path of the downstream of the PoE input network port module is respectively connected with the microprocessor, the encryption and decryption module, the Ethernet output network port module and the wireless transceiver module and supplies power to the microprocessor, the encryption and decryption module, the Ethernet output network port module and the wireless transceiver module after passing through the power supply conversion module; the input end of the microprocessor is connected with the encryption and decryption module to collect data flow signals, and the output end of the microprocessor is connected with the two switching circuits. According to the acquisition terminal with the data transmission encryption function, the data encryption function can be upgraded by directly adding the acquisition terminal on the basis of the existing in-operation terminal equipment, and the acquisition terminal has an anti-backflow protection function and can directly acquire power from the terminal equipment without additionally arranging an additional power supply circuit.

Description

Technical Field

[0001] The utility model relates to the field of communication technologies, and particularly relates to an acquisition terminal with a data transmission encryption function. Background Art

[0002] In the field of data communication, in a signal acquisition system for signal acquisition and data transmission of remote devices, a large amount of data collected by a terminal involves commercial secrets or user privacy, and data security protection needs to be provided during network transmission. Early operating signal acquisition terminals did not have a data encryption function and could not achieve the security protection of the collected information during the upload process. Existing terminals with an encryption function are mostly integrated structures, and the main control chip encrypts and decrypts the encryption chip. This means that the entire terminal device needs to be replaced, which not only increases the equipment cost but also consumes a large amount of manpower and material resources. Content of the Utility Model

[0003] The technical problem to be solved by the utility model is to provide an acquisition terminal with a data transmission encryption function, which adopts an independent, hot-pluggable, plug-and-play communication encryption device, can directly add and install on the basis of existing operating terminal devices to realize the upgrade of the data encryption function. The device has an anti-backflow protection function and can directly obtain power from the terminal device without adding additional power supply lines.

[0004] The acquisition terminal with a data transmission encryption function includes a terminal body, and further includes a communication encryption device that is hot-pluggably connected to the terminal body. The output end of the terminal body is connected to the input end of the communication encryption device, and the output end of the communication encryption device is connected to a communication network cable for data upload. Among them, a microprocessor, an encryption and decryption module, a pair of switch circuits, a PoE input network interface module, an Ethernet output network interface module, a wireless transceiver module, and a power conversion module are integrated on the main control board inside the communication encryption device; the downstream of the PoE input network interface module is divided into two paths. One path passes through the encryption and decryption module and then is respectively connected to the Ethernet output network interface module and the wireless transceiver module through two switch circuits. The other path downstream of the PoE input network interface module passes through the power conversion module and is respectively connected to the microprocessor, the encryption and decryption module, the Ethernet output network interface module, and the wireless transceiver module to supply them with a DC3.3V - 5V working voltage. The input end of the microprocessor is connected to the encryption and decryption module to collect data flow signals, and the output end of the microprocessor is respectively connected to two switch circuits that prevent the Ethernet output network interface module and the wireless transceiver module from flowing back current to the encryption and decryption module, so as to prevent overcurrent abnormal latching of the encryption and decryption module and leakage of unencrypted data.

[0005] Further, the output end of the terminal body is connected to the input end of the PoE input network interface module through a PoE network cable to simultaneously realize data transmission and power supply; the Ethernet output network interface module is used as an encrypted data output end and is connected to a communication network cable for data upload.

[0006] Specifically, the microprocessor uses the NUC972DF63YC processing chip.

[0007] Specifically, the encryption and decryption module uses the SSX45 SCCII encryption and decryption chip.

[0008] Specifically, the PoE input network interface module uses the CPoE-AT medium network interface card.

[0009] The acquisition terminal with a data transmission encryption function of the present utility model has a data transmission encryption function. It uses an independent, hot-pluggable plug-and-play communication encryption device, which can directly add and install on the existing in-operation terminal equipment to realize the upgrade of the data encryption function. The device has an anti-backflow protection function and can directly obtain power from the terminal equipment without adding additional power supply lines. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] The following further describes the acquisition terminal with a data transmission encryption function of the present utility model with reference to the drawings:

[0011] Figure 1 is the schematic plan view of the acquisition terminal with a data transmission encryption function;

[0012] Figure 2 is the logic structure and connection principle block diagram of the main control board of the communication encryption device of the acquisition terminal with a data transmission encryption function.

[0013] In the figure:

[0014] 1 - Communication encryption device, 2 - Terminal body;

[0015] 11 - Microprocessor, 12 - Encryption and decryption module, 13 - Switch circuit, 14 - PoE input network interface module, 15 - Ethernet output network interface module, 16 - Wireless transceiver module, 17 - Power conversion module. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0016] In the present utility model, unless otherwise clearly specified and defined, terms such as "installation", "connection", "connection", "fixation" and the like shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral body; it can be a direct connection, or an indirect connection through an intermediate medium, and can be the internal connection or the interaction relationship of two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0017] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "left", "right", "front", "rear", "top", "bottom", "inner", "outer", etc. are all based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model.

[0018] The following uses specific embodiments to further describe the technical solution of the present utility model, but the protection scope of the present utility model is not limited to the following embodiments.

[0019] Embodiment 1: As Figure 1 shown, the acquisition terminal with data transmission encryption function of the present invention includes a terminal body 2, and further includes a communication encryption device 1 that is hot-pluggable with the terminal body 2. The output end of the terminal body 2 is connected to the input end of the communication encryption device 1, and the output end of the communication encryption device 1 is connected to a communication network cable for data uploading. Among them, a microprocessor 11, an encryption / decryption module 12, a pair of switch circuits 13, a PoE input network interface module 14, an Ethernet output network interface module 15, a wireless transceiver module 16, and a power conversion module 17 are integrated on the main control board inside the communication encryption device 1; the downstream of the PoE input network interface module 14 is divided into two paths. One path passes through the encryption / decryption module 12 and then is respectively connected to the Ethernet output network interface module 15 and the wireless transceiver module 16 through two switch circuits 13. The other path downstream of the PoE input network interface module 14 passes through the power conversion module 17 and is respectively connected to the microprocessor 11, the encryption / decryption module 12, the Ethernet output network interface module 15, and the wireless transceiver module 16 to supply them with a working voltage of DC 3.3V - 5V. The input end of the microprocessor 11 is connected to the encryption / decryption module 12 to collect data flow signals. The output end of the microprocessor 11 is respectively connected to two switch circuits 13 that prevent the Ethernet output network interface module 15 and the wireless transceiver module 16 from backflowing current to the encryption / decryption module, so as to prevent overcurrent abnormal latching of the encryption / decryption module 12 and leakage of unencrypted data. The output end of the terminal body 2 is connected to the input end of the PoE input network interface module 14 through a PoE network cable to achieve data transmission and power supply at the same time; the Ethernet output network interface module 15 is used as an encrypted data output end and is connected to a communication network cable for data uploading.

[0020] Embodiment 2: In the acquisition terminal with data transmission encryption function, the microprocessor 11 uses a NUC972DF63YC processing chip. The encryption and decryption module 12 uses an SSX45 SCCII encryption and decryption chip. The PoE input network interface module 14 uses a CPoE-AT medium network interface card. Among the remaining function modules or circuits with unspecified models, the switch circuit preferably uses a MOS transistor switch circuit with low cost and stable control, and the power conversion module preferably uses an LSSZ multi-channel DCDC power chip with filtering and voltage stabilization functions. The remaining structures and components are the same as those in Embodiment 1 and will not be described repeatedly.

[0021] During operation: After the terminal body collects and processes data, it is sent to the encryption and decryption module through the PoE input network interface module for data encoding and encryption. The encrypted data is then connected to the communication network cable through the switch circuit and the Ethernet output network interface module. At the same time, the encrypted data is sent remotely through the switch circuit and the wireless transceiver module; the microprocessor detects the data flow signal. When it detects that the Ethernet output network interface module or the wireless transceiver module, which is used as the output end, backfeeds current inward, the microprocessor controls the switch circuit to cut off the corresponding data path. The power supply of the PoE input network interface branch is converted into the working voltage of each function module through the power conversion module and then supplies power to each module.

[0022] An acquisition terminal with data transmission encryption function of the present utility model has a data transmission encryption function. It uses an independent, hot-pluggable, plug-and-play communication encryption device, which can directly add and install on the existing in-operation terminal equipment to realize the upgrade of the data encryption function. The device has an anti-backflow protection function and can directly obtain power from the terminal equipment without adding additional power supply lines.

[0023] The above description shows the main features, basic principles, and advantages of the present utility model. For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above exemplary embodiments or examples. Without departing from the spirit or basic features of the present utility model, the present utility model can be implemented in other specific forms. Therefore, the above embodiments or examples should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present utility model. Any reference signs in the claims should not be regarded as limiting the claimed rights.

[0024] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A data collection terminal with a data transmission encryption function, comprising a terminal body (2), characterized in that: It also includes a communication encryption device (1) that is hot-swappable and connected to the terminal body (2), wherein the output end of the terminal body (2) is connected to the input end of the communication encryption device (1), and the output end of the communication encryption device (1) is connected to a communication network cable for uploading data, wherein: The communication encryption device (1) has an internal main control board integrated with a microprocessor (11), an encryption and decryption module (12), a pair of switch circuits (13), a PoE input network port module (14), an Ethernet output network port module (15), a wireless transceiver module (16) and a power conversion module (17); the downstream of the PoE input network port module (14) is divided into two paths, one path passes through the encryption and decryption module (12) and then passes through two switch circuits (13) to connect to the Ethernet output network port module (15) and the wireless transceiver module (16), and the other path downstream of the PoE input network port module (14) passes through the power conversion module (17). After the source conversion module (17), the microprocessor (11), the encryption and decryption module (12), the Ethernet output network port module (15) and the wireless transceiver module (16) are respectively connected and supplied with a DC3.3V-5V working voltage. The input end of the microprocessor (11) is connected to the encryption and decryption module (12) to collect data flow signals. The output end of the microprocessor (11) is respectively connected to two switch circuits (13) for preventing the Ethernet output network port module (15) and the wireless transceiver module (16) from backflowing current to the encryption and decryption module, so as to prevent the encryption and decryption module (12) from abnormal overcurrent latching and leakage of unencrypted data.

2. The acquisition terminal with data transmission encryption function according to claim 1 is characterized in that: The output end of the terminal body (2) is connected to the input end of the PoE input network port module (14) via a PoE network cable, thereby realizing data transmission and power supply at the same time; the Ethernet output network port module (15) is connected to the communication network cable used for data upload as an encrypted data output end.

3. The acquisition terminal with data transmission encryption function according to claim 2 is characterized in that: The microprocessor (11) adopts a NUC972DF63YC processing chip.

4. The acquisition terminal with data transmission encryption function according to claim 3 is characterized in that: The encryption and decryption module (12) adopts an SSX45 SCCII encryption and decryption chip.

5. The acquisition terminal with data transmission encryption function according to claim 4 is characterized in that: The PoE input network port module (14) adopts a CPoE-AT medium-sized network port card.

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