An x-ray imaging system
By coordinating the in-place detection components and the control unit, the wireless flat panel detector is ensured to charge upon contact and disconnect from power before disconnection, thus solving the problems of cumbersome charging and easy damage of the wireless flat panel detector and realizing a convenient and efficient charging method.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SHENZHEN MINDRAY BIO MEDICAL ELECTRONICS CO LTD
- Filing Date
- 2018-11-19
- Publication Date
- 2026-07-21
AI Technical Summary
The charging method for wireless flat panel detectors in X-ray imaging systems is cumbersome and prone to damage. Existing charging methods suffer from problems such as complex operation, high cost, or low efficiency.
Employing in-situ detection components and control units, charging only begins after the wireless flat panel detector contacts the charging contacts on the device and stops before contact is lost, avoiding hot-swapping. Retractable contacts and locking components ensure charging safety.
It improves the convenience and reliability of wireless flat panel detectors, avoids damage caused by hot-swapping during charging, simplifies the operation process, and reduces operational complexity and cost.
Smart Images

Figure CN116473579B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to an X-ray imaging system. Background Technology
[0002] X-ray imaging systems can generally be divided into fixed and mobile types based on their portability and mobility. Mobile X-ray imaging systems have the ability to move freely and are usually equipped with wireless flat panel detectors, which can meet the imaging needs of various indoor and outdoor occasions and are flexible in application.
[0003] While wireless flat panel detectors offer convenience, they also have some drawbacks, such as requiring a power source to function. Generally, when not in use, wireless flat panel detectors are stored in a dedicated case and recharged via a wireless charging coil, an external cable, or by removing the detector's battery.
[0004] A wireless charging coil is used to charge the wireless flat panel detector via a tablet box. The advantages of this charging method are: wireless charging allows energy to be transferred through the magnetic field coupling of the coil, eliminating the need for a physical connection between the charging and receiving ends and avoiding the potential damage to the flat panel detector caused by hot-swapping; the disadvantages are: low charging power and efficiency, and high cost.
[0005] The first method uses an external cable for charging. Mechanically, when the wireless flat panel detector is placed inside the box, the external cable makes contact with the detector's charging end, thus charging the detector. The second method uses a battery-removable charger, which provides a separate dedicated charger. The advantage of both methods is that there are no significant limitations on charging power, charging efficiency is high, and cost is relatively low. The disadvantages are that both connecting and disconnecting the cable and removing the battery are cumbersome, and users may forget to charge the detector, affecting its normal use. Summary of the Invention
[0006] In view of the above, this application provides an X-ray imaging system, which is described in detail below.
[0007] According to a first aspect, one embodiment provides an X-ray imaging system, comprising:
[0008] A wireless flat panel detector, equipped with a first charging contact;
[0009] A power supply unit is used to charge the wireless flat panel detector.
[0010] The device includes a main body and a tablet box disposed on the main body for housing the wireless tablet detector. The main body or the tablet box is provided with a second charging contact. The tablet box has a charging working position relative to the main body, such that when the tablet box is in the charging working position, the first charging contact of the wireless tablet detector housed in the tablet box contacts the second charging contact.
[0011] The presence detection component is configured to be triggered when the wireless tablet detector is housed in the tablet box in the charging position, and when the presence detection component is triggered, a presence signal becomes valid.
[0012] When the presence signal is detected to be valid, the control unit turns on the power supply unit to charge the wireless flat panel detector.
[0013] In one embodiment, the presence detection component includes a first presence contact with a first potential disposed on the wireless flat panel detector, and a second presence contact with a second potential disposed on the device body or the tablet box; when the wireless flat panel detector is housed in the tablet box in the charging working position, the first presence contact and the second presence contact come into contact, causing the potential of the second presence contact to change from the second potential to the first potential, and the presence signal becomes valid.
[0014] In one embodiment, when the wireless flat panel detector is housed in the flat panel box in the charging position, the first charging contact and the first in-place contact will contact the second charging contact and the second in-place contact respectively and simultaneously; when the control unit detects that the in-place signal becomes valid, it will turn on the power unit to charge the wireless flat panel detector after a delay period of time.
[0015] In one embodiment, the second charging contact is a retractable contact, such that when the wireless flat panel detector is housed in the flat panel box in the charging working position, the first charging contact and the second charging contact make contact earlier than the first in-place contact and the second in-place contact.
[0016] In one embodiment, the second charging contact is a retractable contact, and when the wireless flat panel detector is removed and stored in the tablet box in the charging working position, the first charging contact and the second charging contact disengage later than the first in-place contact and the second in-place contact; when the first in-place contact and the second in-place contact disengage, the potential of the second in-place contact changes from the first potential back to the second potential, and the in-place signal becomes invalid; when the control unit detects that the in-place signal has become invalid, it shuts down the power supply unit to charge the wireless flat panel detector.
[0017] In one embodiment, the telescopic contact is provided with multiple travel levels.
[0018] In one embodiment, the first potential is a low potential and the second potential is a high potential.
[0019] In one embodiment, the second charging contact is provided on the device body, and the tablet box is movably connected to the device body in a manner that allows it to reciprocate between a closed position and an open position; the closed position is the charging working position; when the tablet box is in the open position, the first charging contact and the second charging contact are disengaged.
[0020] In one embodiment, the X-ray imaging system further includes a locking component and a trigger; the locking component is used to lock the tablet box in the closed position, and the trigger is used to issue a trigger signal when triggered by the user. When the control unit receives the trigger signal, it first shuts down the power supply unit to charge the wireless tablet detector, and then controls the locking component to unlock the tablet box, so that the tablet box can move from the closed position to the open position.
[0021] In one embodiment, the trigger is an inductive switch or a switch that requires manual pressing.
[0022] In one embodiment, the tablet box is provided with the second charging contact, and the body is provided with the second in-place contact. The tablet box is movably connected to the body in a manner that allows it to reciprocate between a closed position and an open position. The closed position is the charging working position. When the wireless tablet detector is housed in the tablet box, the first charging contact and the second charging contact are always in contact.
[0023] In one embodiment, when the tablet housing containing the wireless tablet detector moves from the closed position to the open position, the first in-place contact and the second in-place contact disengage, the potential of the second in-place contact changes from the first potential to the second potential, and the in-place signal becomes invalid; when the control unit detects that the in-place signal has become invalid, it shuts down the power supply unit to charge the wireless tablet detector.
[0024] In one embodiment, the tablet box is provided with the second charging contact, and the tablet box is movably connected to the body in a manner that allows it to reciprocate between a closed position and an open position; the closed position is the charging working position, and when the wireless tablet detector is stored in the tablet box, the first charging contact and the second charging contact are always in contact;
[0025] The presence detection component includes a first presence detection component and a second presence detection component. The first presence detection component is triggered when the tablet box moves from an open position to a closed position, thereby making a first presence signal valid. The second presence detection component includes a first presence contact with a first potential disposed on the wireless tablet detector and a second presence contact with a second potential disposed on the tablet box. When the wireless tablet detector is housed in the tablet box, the first presence contact and the second presence contact are always in contact, and the potential of the second presence contact changes from the second potential to the first potential, thereby making a second presence signal valid. When both the first presence signal and the second presence signal are valid, the presence detection component makes the presence signal valid; otherwise, the presence signal is invalid.
[0026] In one embodiment, the first presence detection component invalidates the first presence signal when the tablet box leaves the closed position, so that the presence detection component invalidates the presence signal, and when the control unit detects that the presence signal has become invalid, it shuts down the power supply unit to charge the wireless tablet detector.
[0027] In one embodiment, the second in-situ contact is electrically connected to the operating voltage terminal of the X-ray imaging system via a resistor, and the first in-situ contact is electrically connected to the ground terminal within the wireless flat panel detector.
[0028] In one embodiment, the power supply unit includes a rechargeable battery disposed within the fuselage, and / or the power supply unit includes an AC / DC converter for accessing grid power.
[0029] According to a second aspect, one embodiment provides an X-ray imaging system, comprising:
[0030] A wireless flat panel detector, equipped with a first charging contact;
[0031] A power supply unit is used to power the wireless flat panel detector.
[0032] The device includes a main body and a tablet box disposed on the main body for housing the wireless flat panel detector, wherein the main body or the tablet box is provided with a second charging contact; and
[0033] The control unit is configured to control the power supply unit to supply power to the wireless flat panel detector based on the detected presence signal; when the detected presence signal is a first potential, the control unit turns on the power supply unit to supply power to the wireless flat panel detector via the contact of the first charging contact and the second charging contact; when the detected presence signal is a second potential, the control unit turns off the power supply unit to supply power to the wireless flat panel detector.
[0034] According to the X-ray imaging system of the above embodiment, by introducing an in-situ detection component, when the wireless flat panel detector is placed into the flat panel box for charging, the first charging contact and the second charging contact are in contact before charging of the wireless flat panel detector begins; when the user needs to remove the wireless flat panel detector from the flat panel box, charging stops before the first charging contact and the second charging contact lose contact, effectively solving the problem of hot-plugging during charging.
[0035] According to a third aspect, one embodiment provides an X-ray imaging system, comprising:
[0036] An X-ray source is used to emit X-rays onto the object being inspected.
[0037] A wireless flat panel detector is used to receive X-rays passing through the object being inspected for imaging; the wireless flat panel detector is equipped with a first charging interface.
[0038] A power supply unit is used to supply power to the X-ray source and the wireless flat panel detector;
[0039] The device includes a main body and a tablet box disposed on the main body for housing the wireless tablet detector, wherein the main body or the tablet box is provided with a second charging port; and
[0040] The control unit is connected to the X-ray source, the wireless flat panel detector, and the power supply unit respectively. It is used to control the power supply unit to supply power to the X-ray source according to the exposure request, and to control the wireless flat panel detector to cooperate with the exposure of the X-ray source for imaging. The control unit is also used to control the power supply unit to supply power to the wireless flat panel detector housed in the flat panel box on the body. The power supply unit supplies power to the wireless flat panel detector through the docking of the first charging interface and the second charging interface. Attached Figure Description
[0041] Figure 1 This is a schematic diagram of a mobile X-ray imaging system according to one embodiment;
[0042] Figure 2 A schematic diagram of a fixed X-ray imaging system according to one embodiment;
[0043] Figure 3 This is a schematic diagram of the structure of an X-ray imaging system according to one embodiment;
[0044] Figure 4 A schematic diagram of a wireless flat panel detector with a first charging contact according to one embodiment;
[0045] Figure 5 A schematic diagram of an X-ray imaging system with a second charging contact according to one embodiment;
[0046] Figure 6 This is a schematic diagram of an X-ray imaging system in an open and closed position according to one embodiment;
[0047] Figure 7 This is a schematic diagram of an X-ray imaging system in an open and closed position, according to another embodiment.
[0048] Figure 8 This is a schematic diagram of an in-situ detection component according to one embodiment;
[0049] Figure 9 This is a schematic diagram of the structure of an X-ray imaging system according to another embodiment;
[0050] Figure 10 Two schematic diagrams are shown for an in-situ detection component configured with a retractable contact in one embodiment;
[0051] Figure 11 Two schematic diagrams of an in-situ detection component configured with a telescopic contact in another embodiment;
[0052] Figure 12 This is a schematic diagram of an X-ray imaging system in an open and closed position according to another embodiment;
[0053] Figure 13 This is a schematic diagram of an embodiment of an in-situ detection component that determines an in-situ signal using multiple signals. Detailed Implementation
[0054] The present invention will now be described in further detail with reference to specific embodiments and accompanying drawings. Similar elements in different embodiments are referred to by associated similar element reference numerals. In the following embodiments, many details are described to facilitate a better understanding of this application. However, those skilled in the art will readily recognize that some features may be omitted in different situations, or may be replaced by other elements, materials, or methods. In some cases, certain operations related to this application are not shown or described in the specification. This is to avoid obscuring the core parts of this application with excessive description. For those skilled in the art, detailed description of these related operations is not necessary; they can fully understand the related operations based on the description in the specification and general technical knowledge in the art.
[0055] Furthermore, the features, operations, or characteristics described in the specification can be combined in any suitable manner to form various embodiments. At the same time, the steps or actions in the method description can be rearranged or adjusted in a manner obvious to those skilled in the art. Therefore, the various orders in the specification and drawings are only for the clear description of a particular embodiment and do not imply a necessary order, unless otherwise stated that a particular order must be followed.
[0056] The serial numbers assigned to components in this document, such as "first" and "second," are used only to distinguish the described objects and have no sequential or technical meaning. The terms "connection" and "linkage" used in this application, unless otherwise specified, include both direct and indirect connections (linkages).
[0057] Wireless flat panel detectors are widely used in X-ray imaging systems, especially mobile X-ray imaging systems, due to their portability. To ensure their convenience, the wireless flat panel detector can be charged when not in imaging work to ensure sufficient power. This invention, based on the storage characteristics of the wireless flat panel detector, provides a technical solution where it can be charged while stored on the device body. The operator simply places the wireless flat panel detector on the device body, which then charges it, eliminating the need for connecting external cables or removing batteries, further improving the convenience of the wireless flat panel detector.
[0058] A first charging port can be provided on the wireless flat panel detector, and a corresponding second charging port can be provided on the main body or on the flat panel housing of the main body. When the wireless flat panel detector is housed in the main body, for example, inside the flat panel housing, the control unit can control the power supply unit of the X-ray imaging system to supply power to the wireless flat panel detector. For example, the first charging port can interface with the second charging port, thereby allowing the power supply unit to transfer power to the wireless flat panel detector. By providing a charging port on the main body or flat panel housing that can work with the wireless flat panel detector, the wireless flat panel detector can be charged even when housed in the main body.
[0059] The tablet box has a charging position relative to the main body. When the tablet box is in this charging position, the wireless tablet detector housed inside the tablet box is in a rechargeable state. At this time, the control unit can connect the first charging port and the second charging port, enabling the power supply unit to supply power to the wireless tablet detector. In the scenario where the tablet box reciprocates between a closed position and an open position relative to the main body, when the tablet box is in the closed position, it can lock the wireless tablet detector inside the tablet box, or at least reliably support the wireless tablet detector inside the tablet box. This closed position can be used as the charging position. When the tablet box is in the closed position, the first charging port of the wireless tablet detector housed inside the tablet box can connect to the second charging port on the main body. In the scenario where the main body is fixed, and the tablet box has a fixed position on the main body, the position where the tablet box is mounted on the main body is the charging position. Because the tablet box is mounted on the main body and partially surrounded by the main body, this position is also called the closed position.
[0060] The wireless flat panel detector is equipped with a built-in battery; when the wireless flat panel detector is stored in the flat panel box on the main body, the power unit can charge the built-in battery of the wireless flat panel detector. The aforementioned first charging interface and second charging interface can be charging contacts, and can be retractable charging contacts; the first charging interface and second charging interface can also be plug-in interfaces; the present invention does not limit its specific implementation.
[0061] Because wireless flat panel detectors are used very frequently, they need to be taken out and put back into the tablet box often. Charging while stored in the tablet box will lead to frequent hot-swapping of the wireless flat panel detector, which can easily damage it. For example, the contacts on the charging end of the wireless flat panel detector may oxidize and turn black due to arcing caused by hot-swapping, resulting in increased contact resistance and affecting the charging function.
[0062] Hot-plugging (or hot swap) is the process of plugging and unplugging while the power is on. Typically, when the charging contacts of a wireless tablet detector are in contact with the system's contacts and being charged, the user directly removes the wireless tablet detector. In this case, the contacts used for charging are very prone to arcing at the moment of plugging and unplugging, which can cause the contacts to oxidize and turn black, or even damage the charging-related circuitry.
[0063] To address the hot-swapping issue of charging wireless flat panel detectors, this application improves the X-ray imaging system. For example, charging begins only after the wireless flat panel detector and system have made proper contact at the contact points; or power is disconnected before the contact points detach, stopping charging of the wireless flat panel detector. This is described in detail below. The charging described herein includes charging when the wireless flat panel detector is not imaging, charging while the wireless flat panel detector is imaging, and even scenarios where the wireless flat panel detector directly utilizes the system's power supply for imaging. The wireless flat panel detector described herein includes both the wireless flat panel detector itself and integrated or detachable modules connected to it.
[0064] It should be noted that the X-ray imaging system in this invention can refer to either a mobile or a fixed type. This invention does not limit the type of system. To illustrate this more clearly, a brief introduction to mobile and fixed X-ray imaging systems will be given below.
[0065] Please refer to Figure 1This is a schematic diagram of a mobile X-ray imaging system, which includes a flat panel detector, a movable body, and an X-ray source mounted on the body. Because the mobile X-ray imaging system is movable, it can be moved to wherever needed, such as operating rooms, emergency rooms, ICU wards, neonatal wards, and isolation areas for critically ill patients. The movable body typically has a motion mechanism that can be manually or electrically driven to enable the movement of the mobile X-ray imaging system. The X-ray source, used to emit X-rays, is generally suspended and movable on the body of the mobile X-ray imaging system, and can move in two-dimensional or three-dimensional space using a robotic arm or similar means. The flat panel detector configured for the mobile X-ray imaging system can be wired or wireless: wired flat panel detectors are generally connected to the body via cables for charging and data transmission; wireless flat panel detectors can be mechanically detached from the body for use, for example, the user can remove the wireless flat panel detector from its storage compartment within the body. Wireless flat panel detectors are generally used in mobile X-ray imaging systems. Upon receiving an exposure request, the control unit controls the X-ray source to emit X-rays towards the object being inspected, and controls the wireless flat panel detector to work in conjunction with the X-ray source to receive the X-rays passing through the object for imaging. The imaged data is then further transmitted to the control unit for image processing and display.
[0066] The power unit of a mobile X-ray imaging system may include a rechargeable battery and an AC / DC converter. The AC / DC converter is used to connect to grid power and charge the rechargeable battery. The rechargeable battery can be used as a power source for the X-ray source, to drive the motion mechanism, and to charge a wireless flat panel detector housed within the system. In some embodiments, the AC / DC converter can simultaneously charge both the rechargeable battery and the built-in battery of the wireless flat panel detector.
[0067] Please refer to Figure 2This is a schematic diagram of a fixed X-ray imaging system, which includes a suspended X-ray source, a vertically mounted wired flat panel detector, and a horizontally mounted wired flat panel detector. It's worth noting that a fixed X-ray imaging system can be equipped with only one vertically mounted wired flat panel detector, one horizontally mounted wired flat panel detector, or both. Some other fixed X-ray imaging systems can also be equipped with wireless flat panel detectors; for example, a fixed X-ray imaging system can be equipped with both wireless and wired flat panel detectors. The X-ray source emits X-rays and can move in two or three dimensions in space via mechanical structures such as a ceiling track, featuring a large mechanical travel range. Both wired and wireless flat panel detectors are used to receive X-rays for imaging. Understandably, the "body" of a fixed X-ray imaging system refers to the main structure of the system, which is fixed and cannot be moved. Figure 2 The mechanical support components on the left side for vertically mounting the wired flat panel detector, for example... Figure 2 The lower right side features a photography flatbed for supporting the user and a main body component housing a wired flat panel detector. The flat panel box for storing the detector is detachably connected to the main body. The position where the flat panel box is connected to the body constitutes the closed position mentioned above, i.e., the charging position.
[0068] The power supply unit of a fixed X-ray imaging system may include an AC / DC converter for connecting to grid power and converting grid power into power suitable for the X-ray imaging system. The power supply unit can serve as the operating power source for the X-ray source and can also charge a wireless flat panel detector housed within the system body. In some embodiments, the power supply unit can also power a wireless flat panel detector housed within the system body and used in conjunction with the X-ray source for imaging.
[0069] The above is a description of mobile X-ray imaging systems and fixed X-ray imaging systems. This invention improves upon X-ray imaging systems. As mentioned above, the X-ray imaging system disclosed in this invention can refer to either mobile or fixed systems; this invention does not limit the scope of the invention. Please refer to... Figure 3 An embodiment of the X-ray imaging system of the present invention includes a wireless flat panel detector 10, a power supply unit 20 for charging the wireless flat panel detector 10, a body 30 of the X-ray imaging system, a flat panel box 31, an in-situ detection component 40, and a control unit 50, which are described in detail below. For a fixed X-ray imaging system, the power supply unit 30 may be an AC / DC converter connected to the grid power supply. For a mobile X-ray imaging system, the power supply unit 30 may be a rechargeable battery built into the body 30, or it may be an AC / DC converter connected to the grid power supply.
[0070] Please refer to Figure 4 The wireless flat panel detector 10 is provided with a first charging contact 11. In one embodiment, the first charging contact 11 is electrically connected to a rechargeable battery in the wireless flat panel detector 10, thereby allowing the wireless flat panel detector 10 to be charged. In one embodiment, the first charging contact 11 may consist of a first positive charging contact 11a and a first negative charging contact 11b. In the internal circuit of the wireless flat panel detector 10, the first positive charging contact 11a is electrically connected to the positive terminal of the rechargeable battery in the wireless flat panel detector 10, and the first negative charging contact 11b is electrically connected to the negative terminal of the rechargeable battery. The first negative charging contact 11b and the negative terminal of the rechargeable battery may also both be grounded. It should be noted that... Figure 4 This is a circuit diagram of the first charging contact 11 of the wireless flat panel detector. The position of the first charging contact 11 can be set according to the actual situation, such as setting it on the back, side and bottom of the wireless flat panel detector 10.
[0071] The tablet box 31 is located on the main body 30 and is used to store the wireless tablet detector 10. For example, when charging is needed or the device is not in use, the user can place the wireless tablet detector 10 in the tablet box 31 and remove it from the tablet box 31 when needed. Please refer to [reference needed]. Figure 5 The device body 30 or tablet box 31 is provided with a second charging contact 33. When the second charging contact 33 contacts the first charging contact 11 of the wireless tablet detector 10, the charging line from the power unit 20 to the wireless tablet detector 10 is connected, enabling charging of the wireless tablet detector 10. In one embodiment, the second charging contact 33 can be composed of a second positive charging contact 33a and a second negative charging contact 33b. In this case, "the first charging contact 11 and the second charging contact 33 are in contact" means that the first positive charging contact 11a is in contact with the second positive charging contact 33a and the first negative charging contact 11b is in contact with the second negative charging contact 33b. "The first charging contact 11 and the second charging contact 33 are out of contact" means that the first positive charging contact 11a is out of contact with the second positive charging contact 33a and / or the first negative charging contact 11b is out of contact with the second negative charging contact 33b. It should be noted that... Figure 5 The diagram shown is a schematic diagram of the second charging contact 33 provided on the body 30. Those skilled in the art will understand that this is not intended to limit the second charging contact 33 to only being provided on the body 30. As mentioned above, the second charging contact 33 can also be provided on the tablet box 31.
[0072] The tablet box 31 has a charging working position relative to the main body, such that when the tablet box 31 is in this charging working position, the first charging contact 11 of the wireless tablet detector 10 housed within the tablet box 31 contacts the second charging contact 33. The presence detection component 40 is configured to be triggered when the wireless tablet detector 10 is housed within the tablet box 31 in the charging working position. When the presence detection component 40 is triggered, a presence signal becomes valid. When the control unit 50 detects that the presence signal has become valid, it turns on the power unit 20 to charge the wireless tablet detector 10.
[0073] In summary, in this invention, the tablet box 31 can be either inactively disposed on the body 30 or movably disposed on the body 30, as described below:
[0074] 1. In one embodiment, the tablet box 31 is non-movably disposed on the body 30, and has only one position relative to the body 30, namely the charging working position. When the wireless tablet detector 10 is placed in the tablet box 31, on the one hand, the first charging contact 11 and the second charging contact 33 are in contact, and on the other hand, the presence detection component 40 is triggered, so that a presence signal changes from invalid to valid. When the control unit 50 detects that the presence signal has become valid, it turns on the power unit 20 to charge the wireless tablet detector 10.
[0075] 2. In one embodiment, the tablet box 31 is movably disposed on the body 30 and has multiple positions relative to the body 30. When the wireless tablet detector 10 is placed in the tablet box 31, if the tablet box 31 is in other positions (i.e., non-charging working position), the first charging contact 11 and the second charging contact 33 can be designed to be in contact or to be out of contact. However, when the tablet box 31 moves from other positions to the charging working position, the first charging contact 11 and the second charging contact 33 will be in contact, and the presence detection component 40 will be triggered, causing a presence signal to change from invalid to valid. When the control unit 50 detects that the presence signal has become valid, it turns on the power unit 20 to charge the wireless tablet detector 10.
[0076] The following example illustrates the scenario where, when the tablet box 31 is in a non-charging operating position, the first charging contact 11 and the second charging contact 33 are designed to be out of contact: Please refer to... Figure 6 In one embodiment, the main body 30 is provided with the second charging contact 33, and the tablet box 31 is movably connected to the main body 30 in a manner that allows it to reciprocate between a closed position and an open position. The closed position of the tablet box 31 is the charging working position. When the tablet box 31 is in the closed position, the first charging contact 11 of the wireless tablet detector 10 housed therein contacts the second charging contact 33 of the main body 30. For example... Figure 6As shown in (b); when the tablet box 31 is in the open position, the first charging contact 11 of the wireless tablet detector 10 housed therein is disengaged from the second charging contact 33 of the body 30, for example Figure 6 As shown in (a); therefore, when the tablet box 31 containing the wireless tablet detector 10 moves from the open position to the closed position, the first charging contact 11 and the second charging contact 33 change from being out of contact to being in contact, and when it moves from the closed position to the open position, the first charging contact 11 and the second charging contact 33 change from being in contact to being out of contact.
[0077] The following example illustrates the scenario where, when the tablet box 31 is in a non-charging operating position, the first charging contact 11 and the second charging contact 33 are designed to remain in contact: Please refer to... Figure 7 In one embodiment, the tablet box 31 is provided with the second charging contact 33. The tablet box 31 is movably connected to the body 30 in a manner that allows it to reciprocate between a closed position and an open position. The closed position of the tablet box 31 is the charging working position. Since the tablet box 31 is provided with the second charging contact 33, when the wireless tablet detector 10 is housed in the tablet box 31, the first charging contact 11 and the second charging contact 33 are always in contact. That is, regardless of whether the tablet box 31 is in the open position or the closed position, the first charging contact 11 and the second charging contact 33 are always in contact.
[0078] It should be noted that, Figure 6 and Figure 7 The middle plate box 31 is rotatably connected to the body 30, for example, the bottom of the plate box 31 can be connected to the body 30 by a hinge; however, this is not intended to limit the plate box 31 to be movably connected to the body 30 in only this way.
[0079] In one embodiment, when the tablet box 31 is in the closed position, the wireless tablet detector 10 stored therein cannot be removed by the user; only when the tablet box 31 is in the open position can the wireless tablet detector 10 stored therein be removed by the user. Correspondingly, in another embodiment, when the tablet box 31 is in the open position, the wireless tablet detector 10 can be placed in the tablet box 31 by the user; when the tablet box 31 is in the closed position, the wireless tablet detector 10 cannot be placed in the tablet box 31.
[0080] The present invention can further control the power supply unit 20 to charge the wireless flat panel detector based on the in-situ detection component 40. Its structure and function will be described below through several embodiments.
[0081] Please refer to Figure 8In one embodiment, the presence detection component 40 includes a first presence contact 41 with a first potential disposed on the wireless flat panel detector 10, and a second presence contact 42 with a second potential disposed on the body 30 or the tablet box 31. When the wireless flat panel detector 10 is housed in the tablet box 31 in the charging working position, the first presence contact 41 and the second presence contact 42 of the presence detection component 40 come into contact, causing the potential of the second presence contact 42 to change from the second potential to the first potential, and the presence signal becomes valid. In one embodiment, the first potential is a low potential, and the second potential is a high potential. It should be noted that "low potential" and "high potential" are relative; essentially, the second potential is higher than the first potential. Thus, the second potential is high relative to the first potential, and the first potential is low relative to the second potential. In specific implementation, for example, the second in-place contact 42 is electrically connected to the operating voltage terminal of the X-ray imaging system via a resistor R, while the first in-place contact 41 is electrically connected to the ground terminal within the wireless flat panel detector 10. Therefore, when the second in-place contact 42 contacts the first in-place contact 41, the potential of the second in-place contact 42 is pulled down. When the second in-place contact 42 disengages from the first in-place contact 41, the potential of the second in-place contact 42 returns to its original value. It should be noted that... Figure 8 The diagram shows a circuit principle implemented by the in-situ detection component 40. The second charging contact 33 can be located in the body 30 or in the tablet box 31. Similarly, the second in-situ contact 42 can be located in the body 30 or in the tablet box 31.
[0082] As can be seen, during the process of placing the wireless flat panel detector 10 into the tablet box 31 for charging, two contacts are involved: one is the contact of the charging contacts, namely the contact between the first charging contact 11 and the second charging contact 33, and the other is the contact of the in-place contacts, namely the contact between the first in-place contact 41 and the second in-place contact 42. Generally, during the process of placing the wireless flat panel detector 10 into the tablet box 31 for charging, the contact of the charging contacts is no later than the contact of the in-place contacts, that is, the contact of the charging contacts occurs earlier than the contact of the in-place contacts, or the contact of the charging contacts and the contact of the in-place contacts occur simultaneously. Correspondingly, during the process of removing the wireless flat panel detector 10 from the tablet box 31, it is necessary to ensure that the power supply unit 20 is turned off to charge the wireless flat panel detector 10 before the first charging contact 11 and the second charging contact 33 lose contact. The charging control during the two processes of placing the wireless flat panel detector 10 into the tablet box 31 for charging and removing the wireless flat panel detector 10 from the tablet box 31 will be explained below.
[0083] First, we will describe one embodiment of charging.
[0084] In one embodiment, when the wireless flat panel detector 10 is housed in the tablet box 31 in the charging position, the first charging contact 11 and the first in-place contact 41 simultaneously and respectively contact the second charging contact 33 and the second in-place contact 42. In other words, when the wireless flat panel detector 10 is housed in the tablet box 31 in the charging position, while the first charging contact 11 and the second charging contact 33 are in contact, the first in-place contact 41 also contacts the second in-place contact 42. Accordingly, when the control unit detects that the in-place signal has become valid, it delays for a period of time before turning on the power supply unit 20 to charge the wireless flat panel detector 10.
[0085] The above paragraph describes one method of placing the tablet box 31 into the charging dock. The tablet box 31 can be either inactively mounted on the device body 30 or movably mounted on the device body 30. Taking the example where the tablet box 31 is movably mounted on the device body 30, we will explain a method for removing the tablet box and disconnecting the power, which can be used in conjunction with the above-described method of placing it into the charging dock.
[0086] Please refer to Figure 9 In one embodiment, the X-ray imaging system may further include a locking component 61 and a trigger 62. The locking component 61 is used to lock the tablet box 31 in the closed position. When the tablet box 31 is locked in the closed position, it cannot move freely to the open position, thus preventing the user from removing the wireless tablet detector 10 stored in the tablet box 31. The trigger 62 is used to issue a trigger signal when triggered by the user. When the control unit 50 receives the trigger signal, it first shuts off the power supply unit 20 to charge the wireless tablet detector 10, and then controls the locking component 61 to unlock the tablet box 31, allowing the tablet box 31 to move from the closed position to the open position. Therefore, through the trigger 62, when the user needs to remove the wireless tablet detector 10 from the tablet box which is locked in the closed position, the power supply unit 20 to charge the wireless tablet detector is first shut off, and then the tablet box 31 can move from the closed position to the open position. This achieves the goal of stopping the charging of the wireless tablet detector 10 before the first charging contact 11 and the second charging contact 33 disengage. In one embodiment, the trigger 62 is a proximity switch or a switch requiring manual pressing. Taking a photoelectric sensor switch as an example, when the user needs to remove the wireless tablet detector 10 placed on the flat panel 31, their hand will block the photoelectric sensor switch, thus generating a trigger signal. When the control unit 50 detects this trigger signal, it shuts off the power supply unit 20 to charge the wireless tablet detector 10, and then controls the locking component 61 to unlock the tablet box 31. It should be noted that... Figure 9The diagram shows the case where the second charging contact 33 and the second in-place contact 42 are located on the body 30. However, this is only for illustration and is not intended to limit the scope. For example, those skilled in the art will understand that the second charging contact 33 and the second in-place contact 42 can also be located on the tablet box 31.
[0087] Next, an embodiment of charging will be described.
[0088] Please refer to Figure 10 In one embodiment, the second charging contact 33 is a telescopic contact, so that when the wireless flat panel detector 10 is housed in the tablet box 31 in the charging working position, the first charging contact 11 and the second charging contact 33 contact earlier than the first in-place contact 41 and the second in-place contact 42. In other words, since the second charging contact 33 is a telescopic contact with a certain stroke, it allows the first charging contact 11 and the second charging contact 33 to contact first, and the first in-place contact 41 and the second in-place contact 42 to contact later, when the wireless flat panel detector 10 is housed in the tablet box 31 in the charging working position. Therefore, when the control unit 50 detects that the in-place signal has become effective, the first charging contact 11 and the second charging contact 33 have already made contact. At this time, the control unit 50 can immediately or after a period of time turn on the power unit 20 to charge the wireless flat panel detector 10. In one embodiment, the second in-place contact 42 can be either a non-retractable contact or a retractable contact. When the second in-place contact 42 is a retractable contact, its extension stroke only needs to be less than the extension stroke of the second charging contact 33 to ensure that when the wireless flat panel detector 10 is placed in the flat panel box 31 for charging, the first charging contact 11 and the second charging contact 33 make contact earlier than the first in-place contact 41 and the second in-place contact 42. In one embodiment, the retractable contact can have multiple stroke levels, which allows sufficient time between the contact of the first charging contact 11 and the second charging contact 33 and the contact of the first in-place contact 41 and the second in-place contact 42. That is, sufficient time between the contact of the first charging contact 11 and the second charging contact 33 and the effective in-place signal, so that the first charging contact 11 and the second charging contact 33 are already in contact before the control unit 50 turns on the power unit 20 to charge the wireless flat panel detector 10.
[0089] The preceding paragraph describes one method of placing the tablet box 31 into the charging dock. This can be either a non-movably mounted component of the device body 30 or a movable component of the device body 30. Below, we will describe another method for removing the tablet box from the charging dock and disconnecting the power, which can be used in conjunction with the above-described method.
[0090] Please refer to Figure 11In one embodiment, the second charging contact 33 is a telescopic contact, such that when the wireless flat panel detector 10 is removed and stored in the flat panel box 31 in the charging working position, the first charging contact 11 and the second charging contact 33 disengage later than the first in-place contact 41 and the second in-place contact 42. When the first in-place contact 41 and the second in-place contact 42 disengage, the potential of the second in-place contact 42 changes from the first potential back to the second potential, and the in-place signal becomes invalid. In other words, since the second charging contact 33 is a telescopic contact with a certain stroke, this can... When the wireless flat panel detector 10 is removed from the tablet box 31 in the charging position, the first presence contact 41 and the second presence contact 42 disengage first, followed by the first charging contact 11 and the second charging contact 33. Therefore, when the first presence contact 41 and the second presence contact 42 disengage first, making the presence signal invalid, the first charging contact 11 and the second charging contact 33 are still in contact. At this time, when the control unit detects that the presence signal has become invalid, it shuts off the power supply unit 20 from charging the wireless flat panel detector 10. In one embodiment, the second presence contact 42 can be either a non-retractable contact or a retractable contact. When the second presence contact 42 is a retractable contact, its extension stroke only needs to be less than that of the second charging contact 33 to ensure that when the wireless flat panel detector 10 is removed from the tablet box 31, the first charging contact 11 and the second charging contact 33 disengage later than the first presence contact 41 and the second presence contact 42. In one embodiment, the retractable contact can have multiple travel levels, which allows sufficient time between the disengagement of the first in-place contact 41 and the second in-place contact 42 and the disengagement of the first charging contact 11 and the second charging contact 33. That is, sufficient time between the in-place signal becoming invalid and the disengagement of the first charging contact 11 and the second charging contact 33, so that when the control unit 50 shuts down the power supply unit 20 to charge the wireless flat panel detector 10, the first charging contact 11 and the second charging contact 33 are still in contact.
[0091] Therefore, when the second charging contact 33 is a retractable contact, it is possible that when the wireless flat panel detector 10 is housed in the tablet box 31 in the charging working position, the first charging contact 11 and the second charging contact 33 make contact earlier than the first in-place contact 41 and the second in-place contact 42, and when the wireless flat panel detector 10 is removed from the tablet box 31 in the charging working position, the first charging contact 11 and the second charging contact 33 disengage later than the first in-place contact 41 and the second in-place contact 42.
[0092] Understandably, in this embodiment where the tablet box 31 is inactively disposed on the body 30: when the wireless tablet detector 10 is placed into the tablet box 31 by the user, the wireless tablet detector 10 is stored in the tablet box 31 in the charging position; when the wireless tablet detector is removed by the user from the tablet box 31, the wireless tablet detector 10 is removed and stored in the tablet box 31 in the charging position. In the embodiment where the tablet box 31 is movably disposed on the body 30: after the wireless tablet detector 10 is placed into the tablet box 31 by the user, when the tablet box 31 moves from the open position to the closed position, the wireless tablet detector 10 is stored in the tablet box 31 in the charging position; and when the tablet box 31 moves from the closed position to the open position, the wireless tablet detector 10 is removed and stored in the tablet box 31 in the charging position.
[0093] Next, an embodiment of charging will be described.
[0094] Please refer to Figure 12 In one embodiment, the tablet box 31 is provided with the second charging contact 33, and the body 31 is provided with the second in-place contact 42. The tablet box 31 is movably connected to the body 30 in a manner that allows it to reciprocate between a closed position and an open position. The closed position of the tablet box 31 is the charging working position. Because the tablet box 31 is provided with the second charging contact 33, when the wireless tablet detector 10 is housed in the tablet box 31, the first charging contact 11 and the second charging contact 33 are always in contact, that is, regardless of whether the tablet box 31 is in the open or closed position, the first charging contact 11 and the second charging contact 33 are always in contact. However, because the body 31 is provided with the second in-place contact 42, the first in-place contact 41 will only contact the second in-place contact 42 when the tablet box 31 is in the closed position, i.e., the charging working position. For example... Figure 12 As shown in (b); when the tablet box 31 is in other positions, such as the open position, the first in-place contact 41 and the second in-place contact 42 are in a disengaged state, for example... Figure 12 As shown in (a); therefore, when the user puts the wireless flat panel detector 10 into the flat panel box 31, although the flat panel box 31 is in the open position at this time, the first charging contact 11 and the second charging contact 33 are still in contact and in a contact state. When the flat panel box 31 moves from the open position to the closed position, the first in-place contact 41 will contact the second in-place contact 42, the potential of the second in-place contact will change from the second potential to the first potential, the in-place signal will become valid, and the control unit 50 will turn on the power unit 20 to charge the wireless flat panel detector 10, ensuring that the first charging contact 11 and the second charging contact 33 are in good contact before the power unit 20 charges the wireless flat panel detector 10.
[0095] The above paragraph describes one method of charging, where the tablet box 31 can be movably mounted on the body 30. Below is another method for removing and disconnecting power, which can be used in conjunction with the above charging method. When the user needs to remove the wireless tablet detector 10, the tablet box 31 needs to be moved from the closed position to the open position. When the tablet box 31 moves from the closed position to the open position, the first presence contact 41 and the second presence contact 42 change from a contact state to a discontinuous state. The potential of the second presence contact changes from the first potential back to the second potential, and the presence signal becomes invalid. However, at this time, the first charging contact 11 and the second charging contact 33 are still in contact. Therefore, in one embodiment, when the control unit 50 detects that the presence signal has become invalid, it shuts off the power supply unit 20 from charging the wireless tablet detector 10.
[0096] The above is an example of determining whether the presence signal is valid or invalid based on the potential of the second presence contact 42. When the second presence contact 42 changes from the second potential to the first potential, the presence signal becomes valid; conversely, when the second presence contact 42 changes from the first potential to the second potential, the presence signal becomes invalid.
[0097] The following example illustrates how multiple signals determine whether an in-situ signal is valid or invalid.
[0098] Please refer to Figure 13 ,in Figure 13 (b) is Figure 13(a) A schematic side view of a tablet box 31 housing the wireless tablet detector 10; in one embodiment, the presence detection component 40 includes a first presence detection component 43 and a second presence detection component 44; the first presence detection component 43 is triggered when the tablet box 31 moves from an open position to a closed position, so that a first presence signal becomes valid; the second presence detection component 44 includes a first presence contact 44a with a first potential disposed on the wireless tablet detector 10, and a second presence contact 44b with a second potential disposed on the tablet box 31. When the wireless flat panel detector 10 is housed in the flat panel box 31, the first in-place contact 44a and the second in-place contact 44b are always in contact, that is, regardless of whether the flat panel box 31 is in the open or closed position, the first in-place contact 44a and the second in-place contact 44b are always in contact, and the potential of the second in-place contact 44b changes from the second potential to the first potential, so that a second in-place signal becomes valid; wherein when the first in-place signal and the second in-place signal are valid at the same time, the in-place detection component makes the in-place signal valid, otherwise, the in-place signal is invalid. In one embodiment, the first potential is a low potential and the second potential is a high potential. It should be noted that the low potential and high potential here are relative. In fact, the second potential is higher than the first potential. Thus, the second potential is a high potential relative to the first potential, and the first potential is a low potential relative to the second potential. In specific implementation, for example, the second in-place contact 44b is electrically connected to the working voltage terminal of the X-ray imaging system through a resistor R, and the first in-place contact 44a is electrically connected to the ground terminal in the wireless flat panel detector 10. In this way, when the second in-place contact 44b is in contact with the first in-place contact 44a, the potential of the second in-place contact 44b is pulled down, and when the second in-place contact 44b is disconnected from the first in-place contact 44a, the potential of the second in-place contact 44b returns to its original potential.
[0099] In one embodiment, the tablet box 31 is provided with the second charging contact 33. The tablet box 31 is connected to the body 30 in a manner that allows it to reciprocate between a closed position and an open position. The closed position of the tablet box 31 is the charging working position. Since the tablet box 31 is provided with the second charging contact 33, when the wireless tablet detector 10 is housed in the tablet box 31, the first charging contact 11 and the second charging contact 33 are always in contact. That is, regardless of whether the tablet box 31 is in the open position or the closed position, the first charging contact 11 and the second charging contact 33 are always in contact.
[0100] Therefore, when the user places the wireless flat panel detector 10 into the flat panel box 31, although the flat panel box 31 is in the open position, the first charging contact 11 and the second charging contact 33 are still in contact, and the first presence contact 44a and the second presence contact 44b are also in contact. So at this time, the charging contacts of the wireless flat panel detector 10 are connected, and the second presence signal becomes valid. When the flat panel box 31 moves from the open position to the closed position, the first presence detection component 43 is triggered, and the first presence signal also becomes valid. Since both the first presence signal and the second presence signal are valid at this time, the presence signal becomes valid, and the control unit 50 turns on the power unit 20 to charge the wireless flat panel detector 10. This ensures that the first charging contact 11 and the second charging contact 33 are in contact before the power unit 20 charges the wireless flat panel detector 10.
[0101] In one embodiment, the first presence detection component 43 invalidates the first presence signal when the tablet box 31 leaves the closed position, causing the presence detection component 40 to invalidate the presence signal. When the control unit 50 detects that the presence signal has become invalid, it shuts off the power supply unit 20 to charge the wireless tablet detector 10. Therefore, when the user needs to remove the wireless tablet detector 10, the tablet box 31 needs to move from the closed position to the open position. When the tablet box 31 moves from the closed position to the open position, the first presence detection component 43 is deactivated, and the first presence signal becomes invalid, thus making the presence signal invalid as well. However, at this time, the first charging contact 11 and the second charging contact 33 are still in contact. Therefore, when the user needs to remove the wireless tablet detector 10 from the tablet box 31, charging is stopped before the first charging contact 11 and the second charging contact 33 lose contact.
[0102] In some embodiments, the first presence detection component 43 can adopt a similar structural design to the second presence detection component 44, that is, corresponding presence contacts can be provided on the body and the tablet box. When the tablet box 31 moves from the open position to the closed position, the corresponding presence contacts between the body and the tablet box become contacted, so that the potential of the presence contacts on the body becomes consistent with the potential of the presence contacts on the tablet box, and the first presence signal becomes valid. In some embodiments, the first presence detection component 43 can be a sensor switch or mechanical switch provided on the tablet box or the whole machine, such as a proximity-triggered sensor switch or a telescopic button. When the tablet box 31 moves from the open position to the closed position, the sensor switch or mechanical switch is triggered, thereby making the presence signal output by the first presence detection component 43 valid.
[0103] This invention incorporates a switch signal within the X-ray imaging system. The insertion and removal of the wireless flat panel detector triggers a change in this signal. Based on these signal changes, the system determines whether the wireless flat panel detector is in the charging position or about to be removed. This information allows the system to control the power supply unit's output voltage or power off based on the detector's status. Specifically, by detecting an "in-place" signal, the invention avoids hot-swapping issues while allowing the wireless flat panel detector to be charged when retracted into the receiver. When the "in-place" signal changes, the control unit performs different actions, such as controlling the power supply unit to output charging voltage or power off. When the detected "in-place" signal is at a first potential, the control unit can activate the power supply unit to power the wireless flat panel detector via the first and second charging contacts. When the detected "in-place" signal is at a second potential, the control unit can deactivate the power supply unit to power the wireless flat panel detector.
[0104] The above examples illustrate the present invention only to aid in understanding it and are not intended to limit the scope of the invention. Those skilled in the art can make various simple deductions, modifications, or substitutions based on the principles of this invention.
Claims
1. An X-ray imaging system, characterized in that, include: A wireless flat panel detector, equipped with a first charging contact; A power supply unit is used to charge the wireless flat panel detector. The device includes a main body and a tablet box disposed on the main body for housing the wireless tablet detector. A second charging contact is provided on the main body or the tablet box. The tablet box has a charging working position relative to the main body, such that when the tablet box is in this charging working position, the first charging contact of the wireless tablet detector housed within the tablet box contacts the second charging contact. The second charging contact is provided on the tablet box, and the tablet box is movably connected to the main body in a manner that allows it to reciprocate between a closed position and an open position. The closed position is the charging working position, and when the wireless tablet detector is housed within the tablet box, the first charging contact and the second charging contact are always in contact. An in-situ detection component is configured to be triggered when the wireless tablet detector is housed in the tablet case in the charging operating position. When triggered, the in-situ detection component activates an in-situ signal. The in-situ detection component includes a first in-situ detection component and a second in-situ detection component. The first in-situ detection component is triggered when the tablet case moves from an open position to a closed position, activating a first in-situ signal. The second in-situ detection component includes a first in-situ contact with a first potential disposed on the wireless tablet detector and a second in-situ contact with a second potential disposed on the tablet case. When the wireless tablet detector is housed in the tablet case, the first and second in-situ contacts are always in contact, and the potential of the second in-situ contact changes from the second potential to the first potential, activating a second in-situ signal. When both the first and second in-situ signals are active simultaneously, the in-situ detection component activates the in-situ signal. When the presence signal is detected to be valid, the control unit turns on the power supply unit to charge the wireless flat panel detector.
2. The X-ray imaging system as described in claim 1, characterized in that, The second charging contact is provided on the device body, and the tablet box is movably connected to the device body in a manner that allows it to reciprocate between a closed position and an open position; the closed position is the charging working position. When the tablet box is in the open position, the first charging contact and the second charging contact are disengaged.
3. The X-ray imaging system as described in claim 2, characterized in that, It also includes a locking component and a trigger; the locking component is used to lock the tablet box in the closed position, and the trigger is used to send a trigger signal when it is triggered. When the control unit receives the trigger signal, it first shuts down the power unit to charge the wireless tablet detector, and then controls the locking component to unlock the tablet box, so that the tablet box can move from the closed position to the open position.
4. The X-ray imaging system as described in claim 3, characterized in that, The trigger is an inductive switch or a switch that requires manual pressing.
5. The X-ray imaging system as described in claim 1, characterized in that, When the tablet box leaves the closed position, the first presence detection component invalidates the first presence signal, so that the presence detection component invalidates the presence signal. When the control unit detects that the presence signal has become invalid, it shuts down the power supply unit to charge the wireless tablet detector.
6. The X-ray imaging system as described in claim 1, characterized in that, The second in-situ contact is electrically connected to the operating voltage terminal of the X-ray imaging system via a resistor, and the first in-situ contact is electrically connected to the ground terminal in the wireless flat panel detector.
7. The X-ray imaging system as described in claim 1, characterized in that, The power supply unit includes a rechargeable battery disposed within the fuselage, and / or the power supply unit includes an AC / DC converter for connecting to grid power.
8. An X-ray imaging system, characterized in that, include: A wireless flat panel detector, equipped with a first charging contact; A power supply unit is used to power the wireless flat panel detector. The device includes a main body and a tablet box disposed on the main body for housing the wireless tablet detector. The main body or the tablet box is provided with a second charging contact. The tablet box has a charging working position relative to the main body, such that when the tablet box is in the charging working position, the first charging contact of the wireless tablet detector housed in the tablet box contacts the second charging contact. The presence detection component is configured to be triggered when the wireless tablet detector is stored in the tablet box in the charging position. When the presence detection component is triggered, a presence signal becomes valid. The presence detection component includes a first presence detection component and a second presence detection component. The first presence detection component is used to be triggered when the tablet box moves from the open position to the closed position, so that a first presence signal becomes valid. The second presence detection component includes a first presence contact with a first potential disposed on the wireless flat panel detector, and a second presence contact with a second potential disposed on the flat panel housing. When the wireless flat panel detector is housed in the flat panel housing, the first presence contact and the second presence contact are always in contact, and the potential of the second presence contact changes from the second potential to the first potential, thereby making a second presence signal valid. When both the first presence signal and the second presence signal are valid, the presence detection component makes the presence signal valid. as well as The control unit is configured to control the power supply unit to supply power to the wireless flat panel detector based on a detected presence signal; when the detected presence signal is valid, the control unit enables the power supply unit to supply power to the wireless flat panel detector via the contact of the first charging contact and the second charging contact; when the detected presence signal is invalid, the control unit disables the power supply unit to supply power to the wireless flat panel detector.
9. An X-ray imaging system, characterized in that, include: An X-ray source is used to emit X-rays onto the object being inspected. A wireless flat panel detector for receiving X-rays passing through the object being inspected for imaging; The wireless flat panel detector is equipped with a first charging interface; A power supply unit is used to supply power to the X-ray source and the wireless flat panel detector; The device includes a main body and a tablet box disposed on the main body for housing the wireless tablet detector. The tablet box has a charging working position relative to the main body. A second charging interface is provided on the main body or the tablet box. The presence detection component is configured to be triggered when the wireless tablet detector is housed in the tablet box in the charging position, and when the presence detection component is triggered, a presence signal becomes valid. as well as The control unit is connected to the X-ray source, the wireless flat panel detector, and the power supply unit, respectively. It controls the power supply unit to supply power to the X-ray source according to the exposure request, and controls the wireless flat panel detector to cooperate with the X-ray source exposure for imaging. The control unit also controls the power supply unit to supply power to the wireless flat panel detector housed in a flat panel box on the machine body. The power supply unit supplies power to the wireless flat panel detector through a first charging interface and a second charging interface. When the presence signal is detected to be valid, the control unit activates the power supply unit to charge the wireless flat panel detector.
10. The X-ray imaging system as described in claim 9, characterized in that, The body also includes a motion mechanism, and the control unit further controls the power supply unit to supply power to the motion mechanism to move the X-ray imaging system; the body is provided with a second charging interface, and the tablet box is movably connected to the body in a manner that allows it to reciprocate between a closed position and an open position; the closed position is the charging working position; when the tablet box is in the closed position, the wireless tablet detector housed in the tablet box is locked inside the tablet box, and the first charging interface of the wireless tablet detector is connected to the second charging interface on the body.
11. The X-ray imaging system as described in claim 9, characterized in that, The device body is fixedly installed, and the second charging interface is provided on the device body; the tablet box is detachably connected to the device body; the position of the tablet box when it is connected to the device body is the charging working position; when the tablet box is connected to the device body, the first charging interface of the wireless tablet detector housed in the tablet box is connected to the second charging interface on the device body.
12. The X-ray imaging system as described in claim 9, characterized in that, The power supply unit includes a rechargeable battery disposed within the fuselage, and / or the power supply unit includes an AC / DC converter for connecting to grid power.
13. The X-ray imaging system as described in any one of claims 9 to 12, characterized in that, The wireless flat panel detector is also equipped with a built-in battery; when the wireless flat panel detector is stored in the flat panel box on the device, the control unit controls the power supply unit to charge the built-in battery of the wireless flat panel detector.