High voltage generator exposure control device and control system based on wireless communication

Abstract

The present invention provides a high-voltage generator exposure control device and control system based on wireless communication. The high-voltage generator exposure control device based on wireless communication includes a first wireless communication module and a second wireless communication module. The first wireless communication module is integrated in a flat panel detector, and the second wireless communication module is connected to the high-voltage generator in communication. The first wireless communication module and the second wireless communication module use the same communication chip and are wirelessly connected to each other. The flat panel detector and the high-voltage generator obtain each other's state information through the first wireless communication module and the second wireless communication module, and work synchronously according to the state information. The present invention transmits each other's state information through wireless communication between the first wireless communication module and the second wireless communication module, and works synchronously according to the state information, so that the high-voltage generator and the flat panel detector can be quickly and effectively synchronized, the synchronization effect is good, the synchronization time is shortened, and the clarity and accuracy of the image are improved.

Description

Technical Field

[0001] The present invention relates to the field of high voltage generator exposure control, and in particular to a high voltage generator exposure control device and control system based on wireless communication. Background Art

[0002] With the widespread application of X-ray imaging systems in the fields of radiological diagnosis and radiotherapy, a complete supply chain system has been formed. With the development of technology, the structure composed of X-ray flat panel detectors, high voltage generators and X-ray tubes has gradually become the mainstream choice. Among them, the high voltage generator generates high voltage by pressing the exposure hand switch, which excites the X-ray tube to generate X-rays; the flat panel detector receives X-rays, converts them into visible light through fluorescent materials, and then converts them into images through photoelectric conversion.

[0003] With the development of digital X-ray machine technology, flat panel detectors need to use smaller metering time to capture clearer images, which means that a device that can quickly and effectively synchronize the high voltage generator and the flat panel detector is needed.

[0004] However, the prior art uses an automatic exposure detection (AED) module composed of a sensor and related circuits to detect X-ray signals in real time. Once an X-ray is detected, a start exposure signal is sent to the flat panel detector. When no X-ray signal is detected again, a stop exposure signal is sent to the flat panel detector. This method can only control the flat panel detector to work after the high-voltage generator generates X-rays. It is difficult to notify the flat panel detector when the high-voltage generator is about to emit X-rays, and it is also impossible to notify the high-voltage generator to work synchronously when the flat panel detector is working. The synchronization effect is poor, and the synchronization time cannot be shortened. Summary of the invention

[0005] In order to overcome the shortcomings of the prior art, the present invention proposes a high-voltage generator exposure control device and control system based on wireless communication, by respectively arranging a second wireless communication module on the high-voltage generator and a first wireless communication module on the flat-panel detector, transmitting each other's status information through wireless communication between the first wireless communication module and the second wireless communication module, and working synchronously according to the status information, the high-voltage generator and the flat-panel detector can be synchronized quickly and effectively, the synchronization effect is good, the synchronization time is shortened, and the clarity and accuracy of the image are improved.

[0006] To solve the above problems, a technical solution adopted by the present invention is: a high-voltage generator exposure control device based on wireless communication, the high-voltage generator exposure control device based on wireless communication includes a first wireless communication module and a second wireless communication module, the first wireless communication module is integrated in a flat-panel detector, and the second wireless communication module is communicatively connected to the high-voltage generator; the first wireless communication module and the second wireless communication module use the same communication chip and are wirelessly connected to each other, the flat-panel detector and the high-voltage generator obtain each other's status information through the first wireless communication module and the second wireless communication module, and work synchronously according to the status information.

[0007] Furthermore, the first wireless communication module and the second wireless communication module communicate via any one of WiFi, Bluetooth, ZigBee, lora, and infrared communication.

[0008] Furthermore, the second wireless communication module is connected to the high voltage generator via a USB cable.

[0009] Furthermore, the first wireless communication module and the second wireless communication module are connected via pulse signal communication.

[0010] Furthermore, the communication chip is an NRF52840 chip.

[0011] Based on the same inventive concept, the present invention also proposes a high-voltage generator control system, which includes: a high-voltage generator, a flat-panel detector, and a high-voltage generator exposure control device based on wireless communication, wherein the high-voltage generator exposure control device based on wireless communication includes a first wireless communication module and a second wireless communication module, wherein the first wireless communication module is integrated in the flat-panel detector, and the second wireless communication module is communicatively connected to the high-voltage generator; the first wireless communication module and the second wireless communication module use the same communication chip and are wirelessly connected to each other, and the flat-panel detector and the high-voltage generator obtain each other's status information through the first wireless communication module and the second wireless communication module, and work synchronously according to the status information.

[0012] Furthermore, the first wireless communication module and the second wireless communication module communicate via any one of WiFi, Bluetooth, ZigBee, lora, and infrared communication.

[0013] Furthermore, the second wireless communication module is connected to the high voltage generator via a USB cable.

[0014] Furthermore, the first wireless communication module and the second wireless communication module are connected via pulse signal communication.

[0015] Furthermore, the communication chip is an NRF52840 chip.

[0016] Compared with the prior art, the beneficial effect of the present invention lies in that: by respectively arranging the second wireless communication module and the first wireless communication module on the high voltage generator and the flat panel detector, the status information of each other is transmitted through the wireless communication between the first wireless communication module and the second wireless communication module, and working synchronously according to the status information, the synchronization of the high voltage generator and the flat panel detector can be achieved quickly and effectively, the synchronization effect is good, the synchronization time is shortened, and the clarity and accuracy of the image are improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural diagram of an embodiment of a high voltage generator exposure control device based on wireless communication of the present invention;

[0018] Figure 2 It is a structural diagram of another embodiment of the high voltage generator exposure control device based on wireless communication of the present invention;

[0019] Figure 3 A circuit diagram of an embodiment of a control chip in a high voltage generator exposure control device based on wireless communication of the present invention;

[0020] Figure 4 It is a structural diagram of an embodiment of a high voltage generator control system of the present invention. DETAILED DESCRIPTION

[0021] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment.

[0022] See also Figure 1-3 ,in, Figure 1 It is a structural diagram of an embodiment of a high voltage generator exposure control device based on wireless communication of the present invention; Figure 2 It is a structural diagram of another embodiment of the high voltage generator exposure control device based on wireless communication of the present invention; Figure 3 FIG. 1 is a circuit diagram of an embodiment of a control chip in a high voltage generator exposure control device based on wireless communication according to the present invention. Figure 1-3 The high voltage generator exposure control device based on wireless communication of the present invention is described in detail.

[0023] In this embodiment, a high-voltage generator exposure control device based on wireless communication includes a first wireless communication module and a second wireless communication module. The first wireless communication module is integrated in the flat-panel detector, and the second wireless communication module is communicatively connected to the high-voltage generator. The first wireless communication module and the second wireless communication module use the same communication chip and are wirelessly connected to each other. The flat-panel detector and the high-voltage generator obtain each other's status information through the first wireless communication module and the second wireless communication module, and work synchronously according to the status information.

[0024] In this embodiment, the first wireless communication module and the control chip of the flat panel detector are integrated on the same circuit board. In other embodiments, the first wireless communication module and the control chip can be separately arranged in the flat panel detector, or the first wireless communication module can be arranged outside the flat panel detector, and the two can be connected via a USB cable, a network cable, or other signal transmission cables, or wirelessly connected.

[0025] In a specific embodiment, the first wireless communication module is connected to the control chip via a SPI bus.

[0026] In this embodiment, the first wireless communication module obtains electrical energy through a flat panel detector. In other embodiments, the first wireless communication module may also be provided with a power supply and powered by the power supply, wherein the power supply may be at least one of a built-in power supply and an external power supply.

[0027] In this embodiment, the first wireless communication module and the second wireless communication module communicate via any one of WiFi, Bluetooth, ZigBee, lora, and infrared communication.

[0028] In this embodiment, the second wireless communication module is connected to the high voltage generator via a USB cable, the controller of the high voltage generator is provided with a USB interface, the second wireless communication module is connected to the controller of the high voltage generator via the USB interface, and data is transmitted and electric energy is obtained via the USB cable. The software in the controller is modified so that the controller can recognize the relevant signals input or output by the USB interface, and the high voltage generator is controlled to change the working state according to the state information of the flat panel detector input by the USB interface.

[0029] In other embodiments, the second wireless communication module can also be connected to the controller via wireless communication, and ISA, PCI, AGP, PCI Express and other interfaces capable of data transmission can also be set on the high-voltage generator, and the second wireless communication module is connected to the high-voltage generator via the interface.

[0030] In this embodiment, the first wireless communication module and the second wireless communication module are connected via pulse signal communication, wherein the first wireless communication module or the second wireless communication module obtains the status information of the flat panel detector or the high voltage generator, and wirelessly transmits the status information to the second wireless communication module or the first wireless communication module in the form of a pulse signal.

[0031] In a specific embodiment, the communication chip in the first wireless communication module and the second wireless communication module is an NRF52840 chip, which supports Bluetooth 5.0, Zigbee, 802.15.4, ANT, 2.4Ghz, USB2.0 and other protocols.

[0032] The exposure control device for a high-voltage generator based on wireless communication of the present invention is described below through the information transmission method between the first wireless communication module and the second wireless communication module.

[0033] The NRF52840 chip in the second wireless communication module communicates with the high-voltage generator through a USB signal line. The firmware is burned into the NRF52840 chips in the first wireless communication module and the second wireless communication module respectively, and the first wireless communication module is defined as the host, the second wireless communication module is defined as the device, and a unified Bluetooth device name is defined. The second wireless communication module is inserted into the USB interface of the high-voltage generator to modify the software of the controller of the high-voltage generator so that the control can identify the relevant signals input or output by the USB interface.

[0034] The flat panel detector and the high voltage generator respectively power the first wireless communication module and the second wireless communication module. After receiving the electric energy transmitted by the high voltage generator, the second wireless communication module broadcasts its own Bluetooth device name. When the first wireless communication module searches for the same Bluetooth device name as itself, it will automatically complete the handshake protocol and connect. When the high voltage generator starts to expose, a pulse signal indicating the start of exposure will be sent through the second wireless communication module. After receiving the pulse signal, the flat panel detector will stop self-clearing and start image acquisition. When the high voltage generator ends exposure, a pulse signal indicating the end of exposure will also be sent through the second wireless communication module device. After receiving the pulse signal, the flat panel detector will stop image acquisition and start the sub-clearing mode. Similarly, when the flat panel detector needs to collect images, it will also control the first wireless communication module to send a pulse signal for collecting images to the high voltage generator. After receiving the pulse signal for collecting images through the second wireless communication module, the high voltage generator will emit X-rays.

[0035] Beneficial effect: The high-voltage generator exposure control device based on wireless communication of the present invention respectively sets a second wireless communication module and a first wireless communication module on the high-voltage generator and the flat-panel detector, transmits each other's status information through wireless communication between the first wireless communication module and the second wireless communication module, and works synchronously according to the status information, so as to quickly and effectively realize the synchronization of the high-voltage generator and the flat-panel detector, have good synchronization effect, shorten the synchronization time, and improve the clarity and accuracy of the image.

[0036] Based on the same inventive concept, the present invention also proposes a high voltage generator control system, see Figure 4 , Figure 4 This is a structural diagram of an embodiment of a high voltage generator control system of the present invention, combined with Figure 4 The high voltage generator control system of the present invention will be described.

[0037] In this embodiment, the high-voltage generator control system includes: a high-voltage generator, a flat-panel detector, and a high-voltage generator exposure control device based on wireless communication. The high-voltage generator exposure control device based on wireless communication includes a first wireless communication module and a second wireless communication module. The first wireless communication module is integrated in the flat-panel detector, and the second wireless communication module is communicatively connected to the high-voltage generator. The first wireless communication module and the second wireless communication module use the same communication chip and are wirelessly connected to each other. The flat-panel detector and the high-voltage generator obtain each other's status information through the first wireless communication module and the second wireless communication module, and work synchronously according to the status information.

[0038] In this embodiment, the first wireless communication module and the control chip of the flat panel detector are integrated on the same circuit board. In other embodiments, the first wireless communication module and the control chip can be separately arranged in the flat panel detector, or the first wireless communication module can be arranged outside the flat panel detector, and the two can be connected via a USB cable, a network cable, or other signal transmission cables, or wirelessly connected.

[0039] In a specific embodiment, the first wireless communication module is connected to the control chip via a SPI bus.

[0040] In this embodiment, the first wireless communication module obtains electrical energy through a flat panel detector. In other embodiments, the first wireless communication module may also be provided with a power supply and powered by the power supply, wherein the power supply may be at least one of a built-in power supply and an external power supply.

[0041] In this embodiment, the first wireless communication module and the second wireless communication module communicate via any one of WiFi, Bluetooth, ZigBee, lora, and infrared communication.

[0042] In this embodiment, the second wireless communication module is connected to the high voltage generator via a USB cable, the controller of the high voltage generator is provided with a USB interface, the second wireless communication module is connected to the controller of the high voltage generator via the USB interface, and data is transmitted and electric energy is obtained via the USB cable. The software in the controller is modified so that the controller can recognize the relevant signals input or output by the USB interface, and the high voltage generator is controlled to change the working state according to the state information of the flat panel detector input by the USB interface.

[0043] In other embodiments, the second wireless communication module can also be connected to the controller via wireless communication, and ISA, PCI, AGP, PCI Express and other interfaces capable of data transmission can also be set on the high-voltage generator, and the second wireless communication module is connected to the high-voltage generator via the interface.

[0044] In this embodiment, the first wireless communication module and the second wireless communication module are connected via pulse signal communication, wherein the first wireless communication module or the second wireless communication module obtains the status information of the flat panel detector or the high voltage generator, and wirelessly transmits the status information to the second wireless communication module or the first wireless communication module in the form of a pulse signal.

[0045] In a specific embodiment, the communication chip in the first wireless communication module and the second wireless communication module is an NRF52840 chip, which supports Bluetooth 5.0, Zigbee, 802.15.4, ANT, 2.4Ghz, USB2.0 and other protocols.

[0046] The exposure control device for a high-voltage generator based on wireless communication of the present invention is described below through the information transmission method between the first wireless communication module and the second wireless communication module.

[0047] The NRF52840 chip in the second wireless communication module communicates with the high-voltage generator through a USB signal line. The firmware is burned into the NRF52840 chips in the first wireless communication module and the second wireless communication module respectively, and the first wireless communication module is defined as the host, the second wireless communication module is defined as the device, and a unified Bluetooth device name is defined. The second wireless communication module is inserted into the USB interface of the high-voltage generator to modify the software of the controller of the high-voltage generator so that the control can identify the relevant signals input or output by the USB interface.

[0048] The flat panel detector and the high voltage generator respectively power the first wireless communication module and the second wireless communication module. After receiving the electric energy transmitted by the high voltage generator, the second wireless communication module broadcasts its own Bluetooth device name. When the first wireless communication module searches for the same Bluetooth device name as itself, it will automatically complete the handshake protocol and connect. When the high voltage generator starts to expose, a pulse signal indicating the start of exposure will be sent through the second wireless communication module. After receiving the pulse signal, the flat panel detector will stop self-clearing and start image acquisition. When the high voltage generator ends exposure, a pulse signal indicating the end of exposure will also be sent through the second wireless communication module device. After receiving the pulse signal, the flat panel detector will stop image acquisition and start the sub-clearing mode. Similarly, when the flat panel detector needs to collect images, it will also control the first wireless communication module to send a pulse signal for collecting images to the high voltage generator. After receiving the pulse signal for collecting images through the second wireless communication module, the high voltage generator will emit X-rays.

[0049] Beneficial effect: The high-voltage generator control system of the present invention respectively sets a second wireless communication module and a first wireless communication module on the high-voltage generator and the flat-panel detector, transmits each other's status information through wireless communication between the first wireless communication module and the second wireless communication module, and works synchronously according to the status information, so as to quickly and effectively realize the synchronization of the high-voltage generator and the flat-panel detector, with good synchronization effect, shortened synchronization time, and improved image clarity and accuracy.

[0050] The above-mentioned embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A high voltage generator exposure control device based on wireless communication, characterized in that: The high-voltage generator exposure control device based on wireless communication comprises a first wireless communication module and a second wireless communication module, wherein the first wireless communication module is integrated in the flat panel detector, and the second wireless communication module is communicatively connected with the high-voltage generator; The first wireless communication module and the second wireless communication module use the same communication chip and are wirelessly connected to each other. The flat panel detector and the high voltage generator obtain each other's status information through the first wireless communication module and the second wireless communication module, and work synchronously according to the status information. The NRF52840 chip in the second wireless communication module communicates with the high-voltage generator through a USB signal line, and firmware is burned into the NRF52840 chips in the first wireless communication module and the second wireless communication module respectively. The first wireless communication module is defined as Host, the second wireless communication module is defined as Device, and a unified Bluetooth device name is defined. The second wireless communication module is inserted into the USB interface of the high-voltage generator to modify the software of the controller of the high-voltage generator so that the control can identify the relevant signals input or output by the USB interface; The flat-panel detector and the high-voltage generator respectively power the first wireless communication module and the second wireless communication module. After receiving the electric energy transmitted by the high-voltage generator, the second wireless communication module broadcasts its own Bluetooth device name. When the first wireless communication module searches for the same Bluetooth device name as itself, it will automatically complete the handshake protocol and connect. When the high-voltage generator starts to expose, a pulse signal indicating the start of exposure will be sent through the second wireless communication module. After receiving the pulse signal, the flat-panel detector will stop self-clearing and start image acquisition. When the high-voltage generator ends exposure, a pulse signal indicating the end of exposure will also be sent through the second wireless communication module device. After receiving the pulse signal, the flat-panel detector will stop image acquisition and start the sub-clearing mode. Similarly, when the flat-panel detector needs to collect images, it will also control the first wireless communication module to send a pulse signal for collecting images to the high-voltage generator. After receiving the pulse signal for collecting images through the second wireless communication module, the high-voltage generator will emit X-rays.

2. The high voltage generator exposure control device based on wireless communication according to claim 1, characterized in that: The first wireless communication module and the second wireless communication module communicate via any one of WiFi, Bluetooth, ZigBee, lora, and infrared communication.

3. The high voltage generator exposure control device based on wireless communication according to claim 1, characterized in that: The second wireless communication module is connected to the high voltage generator via a USB cable.

4. The high voltage generator exposure control device based on wireless communication according to claim 1, characterized in that: The first wireless communication module and the second wireless communication module are connected to each other through pulse signal communication.

5. The high voltage generator exposure control device based on wireless communication according to claim 1, characterized in that: The communication chip is NRF52840 chip.

6. A high voltage generator control system, characterized in that: The high-voltage generator control system comprises: a high-voltage generator, a flat-panel detector, and a high-voltage generator exposure control device based on wireless communication according to any one of claims 1 to 5, wherein the high-voltage generator exposure control device based on wireless communication comprises a first wireless communication module and a second wireless communication module, wherein the first wireless communication module is integrated in the flat-panel detector, and the second wireless communication module is in communication connection with the high-voltage generator; The first wireless communication module and the second wireless communication module use the same communication chip and are wirelessly connected to each other. The flat panel detector and the high voltage generator obtain each other's status information through the first wireless communication module and the second wireless communication module, and work synchronously according to the status information.

7. The high voltage generator control system according to claim 6, characterized in that: The first wireless communication module and the second wireless communication module communicate via any one of WiFi, Bluetooth, ZigBee, lora, and infrared communication.

8. The high voltage generator control system according to claim 6, characterized in that: The second wireless communication module is connected to the high voltage generator via a USB.

9. The high voltage generator control system according to claim 6, characterized in that: The first wireless communication module and the second wireless communication module are connected to each other through pulse signal communication.

10. The high voltage generator control system according to claim 6, characterized in that: The communication chip is NRF52840 chip.

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