Bus data transmission device based on SPI (Serial Peripheral Interface)

Abstract

The utility model relates to the technical field of data transmission, and discloses an SPI (Serial Peripheral Interface)-based bus data transmission device, which comprises a data transmission device body and a plurality of interfaces arranged at the end part of the data transmission device body, a limiting frame is installed at the end of the data transmission device body, the distance between the limiting frame and the data transmission device body is adjustable, a through wire passing channel is formed in the limiting frame, an opening communicated with the wire passing channel is formed in the top of the limiting frame, a plurality of sliding blocks are installed in the opening, and the sliding blocks are connected with the wire passing channel. The distance between any two adjacent sliding blocks of the multiple sliding blocks is adjustable, and the multiple sliding blocks are each provided with an elastic limiting early warning piece which is arranged in the cable passing channel and used for cable limiting. The utility model provides a data transmission device based on an SPI (Serial Peripheral Interface) bus, and solves the problems that a cable connected with an interface on the data transmission device is easy to fall off from the interface under the action of external force, and an early warning signal cannot be sent out in time once the cable falls off.

Description

Technical Field

[0001] The utility model relates to the technical field of data transmission, in particular to a data transmission device based on the SPI bus. Background Art

[0002] A data transmission device based on the SPI bus is a hardware device that uses the SPI bus protocol to achieve data transmission. The data transmission device includes a microcontroller and an IMU sensor. The microcontroller, as the master device, communicates with the IMU sensor through the SPI bus to read the sensing data of the accelerometer and gyroscope. The IMU sensor, as the slave device, after receiving the clock signal and instruction from the microcontroller, sends the data back to the microcontroller through the MISO line. The microcontroller, as the master device, is usually installed in the center of the device or in a position where it is easy to connect other components. The IMU sensor, as the slave device, is generally set inside the device and is connected to the master device through a connector. The data transmission device is usually provided with a power interface, a data interface, and a debugging interface for line connection. After the data transmission device is started, the microcontroller is initialized, the communication parameters of the SPI interface are configured, and the IMU sensor is selected through the SS line. The microcontroller sends the clock signal and instruction to the IMU sensor through the MOSI line. The IMU sensor samples the data at the rising edge or falling edge of the SCK signal and sends the data back to the microcontroller through the MISO line. The microcontroller receives the data sent by the IMU sensor and processes it. The processed data is sent to other systems or devices through the data interface;

[0003] The cable connected to the interface on the data transmission device is likely to fall off the interface when subjected to external force. Once the cable falls off, it is impossible to send a warning signal in time to notify the operator to take corresponding measures.

[0004] To solve the above problems, a data transmission device based on the SPI bus is proposed in this application. Summary of the Utility Model

[0005] Based on the technical problems existing in the background art, the utility model proposes a data transmission device based on the SPI bus.

[0006] A data transmission device based on the SPI bus proposed by the utility model includes a data transmission device body and a plurality of interfaces opened at the end of the data transmission device body;

[0007] A limiting frame is installed at the end of the data transmission device body, and the distance between the limiting frame and the data transmission device body is adjustable. A through wire passing channel is formed in the limiting frame. An open mouth communicating with the wire passing channel is opened at the top of the limiting frame. A plurality of sliding blocks are installed in the open mouth, and the distance between any two adjacent sliding blocks is adjustable. Elastic limiting and warning members for limiting the wire are installed on the plurality of sliding blocks and are arranged in the wire passing channel.

[0008] Preferably, the elastic limiting and warning member includes a limiting cylinder. A through assembly channel is opened in the sliding block. The limiting cylinder is vertically installed in the assembly channel. A cavity is opened in the limiting cylinder. A warning part is installed at the top of the cavity. An elastic limiting part which slides through the bottom of the limiting cylinder and extends into the wire passing channel is arranged in the cavity.

[0009] Preferably, the warning part includes a pressure sensor and an alarm. The pressure sensor is installed at the top of the cavity. The alarm is installed at the top of the limiting cylinder. The pressure sensor is in communication connection with the alarm.

[0010] Preferably, the elastic limiting part includes a shaft disc. The shaft disc is slidably arranged in the cavity in the limiting cylinder. An opening communicating with the cavity is opened at the bottom of the limiting cylinder. A limiting rod which slides through the opening is installed at the bottom of the shaft disc. A spring located in the cavity is sleeved on the limiting rod, and two ends of the spring are respectively connected with the bottom of the shaft disc and the bottom of the cavity.

[0011] Preferably, two horizontally arranged fixing rods are installed in the open mouth. The plurality of sliding blocks are all slidably sleeved on the two fixing rods. A first bolt which presses against the fixing rod is in threaded connection with the sliding block.

[0012] Preferably, connecting rods are installed on both sides of the end of the data transmission device body. The limiting frame is slidably sleeved on the connecting rods on both sides of the end of the data transmission device body. A second bolt which presses against the connecting rod is in threaded connection with the limiting frame.

[0013] The above technical solution of the utility model has the following beneficial technical effects:

[0014] By arranging the elastic limiting and warning members, the joints of the wires can be respectively connected with the interfaces on the data transmission device body, and then the corresponding elastic limiting and warning members can be made to press against the joints of the wires, so as to play a role in limiting the wires and prevent loosening between the joints and the interfaces. When the wires are subjected to a large acting force and the joints on the wires are loosened from the interfaces, the acting force received by the elastic limiting and warning members changes accordingly, and warning can be given in time. This structure can play a certain role in limiting the wires connected to the interfaces and give warning in time after loosening to remind the staff to take measures. Description of the Drawings

[0015] Figure 1 This is a schematic structural diagram of a data transmission device based on the SPI bus proposed by the present utility model.

[0016] Figure 2 For the present utility model Figure 1 a partial structural schematic diagram.

[0017] Figure 3 For the present utility model Figure 1 a planar structural schematic diagram of the elastic limit warning member.

[0018] Reference numerals: 1, data transmission device body; 2, interface; 3, limit frame; 4, slider; 5, elastic limit warning member; 51, limit cylinder; 52, warning part; 521, pressure sensor; 522, alarm; 53, elastic limit part; 531, shaft disc; 532, limit rod; 533, spring; 6, fixed rod; 7, first bolt; 8, connecting rod; 9, second bolt. Detailed implementation manners

[0019] To make the objectives, technical solutions and advantages of the present utility model clearer and more understandable, the present utility model will be further described in detail below in conjunction with the specific implementation manners and with reference to the accompanying drawings. It should be understood that these descriptions are merely exemplary and are not intended to limit the scope of the present utility model. In addition, in the following description, the descriptions of well-known structures and technologies are omitted to avoid unnecessarily confusing the concepts of the present utility model.

[0020] As Figures 1 - 3 shown, a data transmission device based on the SPI bus proposed by the present utility model includes a data transmission device body 1 and a plurality of interfaces 2 opened at the end of the data transmission device body 1;

[0021] In this embodiment, a limit frame 3 is installed at the end of the data transmission device body 1, and the distance between the limit frame 3 and the data transmission device body 1 is adjustable. A through wire passage is formed in the limit frame 3, an opening communicating with the wire passage is opened at the top of the limit frame 3, and a plurality of sliders 4 are installed in the opening. The distance between any two adjacent sliders 4 is adjustable.

[0022] In this embodiment, elastic limit warning members 5 for wire and cable limit are installed on several sliders 4 and are disposed in the wire passing channel. The elastic limit warning member 5 includes a limit cylinder 51. A through assembly channel is formed in the slider 4, and the limit cylinder 51 is vertically installed in the assembly channel. A cavity is formed in the limit cylinder 51, and a warning portion 52 is installed at the top of the cavity. The warning portion 52 includes a pressure sensor 521 and an alarm 522. The pressure sensor 521 is installed at the top of the cavity, and the alarm 522 is installed at the top of the limit cylinder 51. The pressure sensor 521 is communicatively connected to the alarm 522.

[0023] In this embodiment, an elastic limit portion 53 that slides through the bottom of the limit cylinder 51 and extends into the wire passing channel is disposed in the cavity. The elastic limit portion 53 includes a shaft disc 531. The shaft disc 531 is slidably disposed in the cavity within the limit cylinder 51. An opening communicating with the cavity is formed at the bottom of the limit cylinder 51. A limit rod 532 that slides through the opening is installed at the bottom of the shaft disc 531. A spring 533 located in the cavity is sleeved on the limit rod 532, and two ends of the spring 533 are respectively connected to the bottom of the shaft disc 531 and the bottom of the cavity.

[0024] It should be noted that: the connectors of the wire and cable can be respectively connected to the interfaces 2 on the data transmission device body 1. During the process of connecting the wire and cable connector to the interface 2, the limit rod 532 at the bottom of the limit cylinder 51 can be made to abut against the connector. Then, the limit rod 532 pushes the shaft disc 531 to move upward in the limit cylinder 51 to abut against the pressure sensor 521, and stretches the spring 533. Under the elastic action of the spring 533, pressure can be applied to the connector through the limit rod 532 to limit the wire and cable, preventing looseness between the connector and the interface 2. When the wire and cable is subjected to a large force, resulting in loosening between the connector on the wire and cable and the interface 2, after the force received by the limit rod 532 is withdrawn, the spring 533 returns to its original position, driving the shaft disc 531 away from the pressure sensor 521. After the pressure received by the pressure sensor 521 changes, a pressure signal can be transmitted to the alarm 522, and the alarm 522 can give an alarm in time. This structure can play a certain role in limiting the wire and cable connected to the interface 2 and give an early warning in time after it becomes loose to remind the staff to take measures.

[0025] In a specific embodiment, two horizontally arranged fixing rods 6 are installed in the open end. Several sliders 4 are all slidably sleeved on the two fixing rods 6. A first bolt 7 that presses against the fixing rod 6 is threadedly connected to the slider 4.

[0026] It should be noted that: the slider 4 can be slid on the fixing rod 6 as needed to adjust the position where the elastic limit warning member 5 is located. After the adjustment is completed, the position of the slider 4 on the fixing rod 6 can be fixed by the first bolt 7.

[0027] In a specific embodiment, connecting rods 8 are installed on both sides of the end of the data transmission device body 1. The limiting frame 3 is slidably sleeved on the connecting rods 8 on both sides of the end of the data transmission device body 1, and a second bolt 9 that presses against the connecting rod 8 is threadedly connected to the limiting frame 3.

[0028] It should be noted that during use, the limiting frame 3 can be slid on the connecting rod 8 as needed to adjust the distance between it and the data transmission device body 1. After the position of the limiting frame 3 is adjusted, the position of the limiting frame 3 on the connecting rod 8 can be fixed by the second bolt 9.

[0029] It should be understood that the above specific embodiments of the present invention are only used for exemplary illustration or explanation of the principle of the present invention, and do not constitute a limitation to the present invention. Therefore, any modifications, equivalent replacements, improvements, etc. made without departing from the spirit and scope of the present invention shall be included within the protection scope of the present invention. In addition, the appended claims of the present invention are intended to cover all changes and modification examples that fall within the scope and boundaries of the appended claims, or equivalent forms of such scope and boundaries.

Claims

1. A data transmission device based on the SPI bus, comprising a data transmission device body (1) and a plurality of interfaces (2) opened at the end of the data transmission device body (1), characterized in that: A limit frame (3) is installed at the end of the data transmission device body (1), and the distance between the limit frame (3) and the data transmission device body (1) is adjustable. A through wire passing channel is formed in the limit frame (3). An open mouth communicating with the wire passing channel is opened at the top of the limit frame (3). A plurality of sliders (4) are installed in the open mouth. The distance between any two adjacent ones of the plurality of sliders (4) is adjustable. Elastic limit warning members (5) for wire limit are installed on the plurality of sliders (4) and located in the wire passing channel.

2. The data transmission device based on the SPI bus according to claim 1, wherein The elastic limit warning member (5) includes a limit cylinder (51). A through assembly channel is opened in the slider (4). The limit cylinder (51) is vertically installed in the assembly channel. A cavity is opened in the limit cylinder (51). A warning part (52) is installed at the top of the cavity. An elastic limit part (53) that slides through the bottom of the limit cylinder (51) and extends into the wire passing channel is arranged in the cavity.

3. The data transmission device based on the SPI bus according to claim 2, wherein The warning part (52) includes a pressure sensor (521) and an alarm (522). The pressure sensor (521) is installed at the top of the cavity. The alarm (522) is installed at the top of the limit cylinder (51). The pressure sensor (521) is communicatively connected to the alarm (522).

4. The data transmission device based on the SPI bus according to claim 3, characterized in that, The elastic limit part (53) includes a shaft disc (531). The shaft disc (531) is slidably arranged in the cavity in the limit cylinder (51). An opening communicating with the cavity is opened at the bottom of the limit cylinder (51). A limit rod (532) that slides through the opening is installed at the bottom of the shaft disc (531). A spring (533) located in the cavity is sleeved on the limit rod (532), and two ends of the spring (533) are respectively connected to the bottom of the shaft disc (531) and the bottom of the cavity.

5. The data transmission device based on SPI bus according to claim 2, characterized in that Two horizontally arranged fixing rods (6) are installed in the open mouth. The plurality of sliders (4) are all slidably sleeved on the two fixing rods (6). A first bolt (7) that presses against the fixing rod (6) is threadedly connected to the slider (4).

6. The data transmission device based on the SPI bus according to claim 1, wherein Connecting rods (8) are installed on both sides of the end of the data transmission device body (1). The limit frame (3) is slidably sleeved on the connecting rods (8) on both sides of the end of the data transmission device body (1). A second bolt (9) that presses against the connecting rod (8) is threadedly connected to the limit frame (3).

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