WO2023029499A1

WO2023029499A1 - Operating table system, fault handling method for operating table system, and medical device

Info

Publication number: WO2023029499A1
Application number: PCT/CN2022/087302
Authority: WO
Inventors: 孙承文; 姜平; 刘丽丽
Original assignee: 南京迈瑞生物医疗电子有限公司
Priority date: 2021-08-31
Filing date: 2022-04-18
Publication date: 2023-03-09
Also published as: CN117897128A; CN217548465U

Abstract

An operating table system, comprising a control unit (104), a node controller, table working nodes (103) and at least two communication networks. A backup relationship is formed between the communication networks. When an operating table operates abnormally, the control unit (104) can switch the normal node controller from the current communication network to the other communication network, so as to ensure that the table working nodes (103) connected to the node controller can continue working by means of the other communication network. Therefore, the stability and fault tolerance capability of an operating table are improved to a certain extent.

Description

Operating bed system, troubleshooting method of operating bed system, and medical equipment

This application claims the priority of the Chinese patent application with the application number 202111015740.9 and the title of the invention “An Operating Bed System” filed with the China Patent Office on August 31, 2021, the entire contents of which are incorporated in this application by reference.

technical field

The present application relates to the technical field of medical equipment, and more specifically, to an operating bed system, a fault handling method for the operating bed system, and medical equipment.

Background technique

An operating bed is a medical device that carries a patient's body, and usually includes a base, a column, a table section, a control switch, a node communication network, and a control device. During the operation, the medical staff can give control instructions to the operating table through the control switch according to the needs, so that each table section can perform certain actions, such as tilting the head board to the left, raising or lowering the back board, etc.

It is understandable that the motion control commands of the operating bed are mainly transmitted through the internal node communication network, but some external or internal reasons may cause the failure of the node communication network, such as the lifting, translation, tilting of moving parts, etc. Wear and tear on communication cables. If during the operation, the nodes of the operating bed cannot work normally due to communication failure, it may affect the smooth progress of medical work.

Contents of the invention

In view of this, the present application provides an operating bed system, which is used to improve the working stability of the operating bed, thereby providing guarantee for the smooth progress of medical work.

In the first aspect, the embodiment of the present application provides an operating bed system, including:

The main body of the operating bed is at least obtained from the combined structure of the column, the base and the table top, wherein the table top includes at least a head board, a back board, a seat board and a leg board;

The main control circuit board is arranged in the main body of the operating bed, and is provided with at least two communication networks and N node controllers, wherein each of the node controllers can be respectively connected to any of the communication networks, N is greater than or equal to 2;

N bed working nodes, the bed working nodes are electrically connected to the node controllers in one-to-one correspondence;

A control unit, set in the main body of the operating bed, used to select a communication network other than the currently used communication network as the target communication among the at least two communication networks when the operation bed is abnormal Network: controlling a normal node controller among the N node controllers to switch from the currently used communication network to the target communication network.

In the second aspect, an embodiment of the present application provides a fault handling method for an operating bed system. The operating bed system includes an operating bed main body, a main control circuit board, and N bed working nodes, where N is greater than or equal to 2, wherein the The main body of the operating bed is at least obtained by a combined structure of a column, a base, and a table top. The main control circuit board is provided with at least two communication networks and N node controllers, and each node controller can be connected to any one of the node controllers. A communication network, the bed working nodes are electrically connected to the node controllers in one-to-one correspondence;

The method includes: when the operation bed is abnormal, selecting a communication network other than the currently used communication network as a target communication network among the at least two communication networks; and controlling the N A normal node controller among the node controllers switches the connection from the currently used communication network to the target communication network.

In a third aspect, the embodiment of the present application provides a medical device, including:

The subject of medical equipment;

The main control circuit board is arranged in the main body of the medical equipment, and is provided with at least two communication networks and N node controllers, wherein each of the node controllers can be respectively connected to any of the communication networks, N is greater than or equal to 2;

N working nodes, the working nodes are electrically connected to the node controllers in one-to-one correspondence;

A control unit, arranged in the main body of the medical device, is used to select a communication network other than the currently used communication network as the target communication among the at least two communication networks when the medical device is operating abnormally Network: controlling a normal node controller among the N node controllers to switch from the currently used communication network to the target communication network.

It can be seen from the technical solution that the medical equipment (such as the operating bed system) of the embodiment of the present application includes a main control circuit board, N working nodes (such as bed working nodes) and a control unit, and the main control circuit board is provided with at least two communication networks And multiple node controllers, each communication network forms a backup relationship. When medical equipment such as the operating bed system runs abnormally, the control unit can switch the normal node controller from the current communication network to other communication networks. To ensure that the working nodes connected to the node controller, such as the bed working node, can continue to work through other communication networks, thus improving the stability and fault tolerance of the operating bed to a certain extent.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention. Those skilled in the art can also obtain other drawings based on these drawings without creative work.

FIG. 1 is a schematic structural view of an operating bed system provided in an embodiment of the present application;

FIG. 2 is a schematic structural view of the main body of the operating bed provided in the embodiment of the present application;

Fig. 3 is a schematic diagram of an architecture of an operating bed communication system provided by an embodiment of the present application.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the application with reference to the drawings in the embodiments of the application. Apparently, the described embodiments are only some of the embodiments of the application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

The operating table is a commonly used medical equipment. If it runs abnormally during the operation, it may cause the operation to fail to proceed normally, and even cause medical accidents in severe cases. The operating bed can be equipped with a control unit, a communication network, and a bed working node. The control unit controls the bed working node through the communication network to realize the automatic operation of the operating bed, such as the movement of the table top and so on. After research, the technicians found that one of the reasons for the failure of the operation bed is the failure of communication. In order to improve the operation reliability of the operation bed, this application improves the communication network of the operation bed and proposes a communication network based on the improved The operating bed for abnormal handling.

An operating bed system provided by an embodiment of the present application will be described with reference to FIG. 1 and FIG. 2 . Referring to FIG. 1 , the operating bed includes: an operating bed main body 101 , a main control circuit board 102 , a bed working node 103 and a control unit 104 .

The main body of the operating bed 101 can be understood as the main body structure for carrying the body of the patient. The main body of the operating bed is at least obtained from the combined structure of the column, the base and the table top. The table top includes at least a head board, a back board, a seat board and a leg board. An example of the structure of an operating bed provided in Figure 2, the operating bed main body 101 can specifically include a base 21, a column 22 and a table top 23 supported on the column 22, further, the table 23 can include a left leg board 231, a right leg board 232, Motion structures such as seat board 233, back board 234 and head board 235.

The main control circuit board 102 is arranged in the main body 101 of the operating bed, for example, it can be arranged at any position on the base, column or table. The main control circuit board 102 is provided with at least two communication networks and N node controllers, where N is greater than or equal to 2, and each node controller can be connected to any communication network.

It should be noted that the operating bed provided in the embodiment of the present application is provided with at least two communication networks, and the communication network may specifically include a communication bus and bus communication controllers respectively arranged at both ends of the communication bus. The bus communication controllers at both ends of the same communication bus can be set on two different control boards, for example, the bus communication controller at one end is set on the main control circuit board, and the bus communication controller at the other end is set on another control board. The communication bus can be an industrial bus, such as CAN (Controller Area Network, Controller Area Network) bus, LIN (Local Interconnect Network, Local Interconnect Network) bus, 485 bus, etc. The node controller can be connected to the communication bus of any communication network. Among them, the CAN bus is a multi-node communication system, which has the characteristics of high reliability and scalable nodes.

The number of bed working nodes 103 is equal to the number of node controllers, and the bed working nodes and node controllers are electrically connected in one-to-one correspondence, such as connecting to the node controller through cables, so that the bed working nodes can be connected to a certain communication network through the node controller road. The bed working node may refer to a structural unit that assists in realizing the functions of the operating bed, for example, may include at least one of the following three items: an instruction input control board, an instruction execution control board, and a sensor control board. The command input control board is used to receive control commands input by users such as medical staff. For example, the control commands include controlling the movement structures such as left leg board, right leg board, seat board, back board and head board to perform actions such as rising, falling, and tilting. instruction. As shown in Figure 2, the command input control panel can include a foot switch 25, a wire controller 24, etc., and the medical staff can send control commands by operating the foot switch or the wire controller to control the surface to perform actions such as rising, falling, and tilting. . The instruction execution control board is used to control a certain structural unit to perform the actions indicated by the control instruction, such as controlling the left leg board, right leg board, seat board, back board and head board to perform movements such as rising, falling, and tilting wait for action. The sensor control board is used to use sensors to collect relevant sensing parameter information, such as temperature sensors, gravity sensors, angular velocity sensors, and so on.

It should be noted that the bed working node 103 may specifically include a node controller, and the node controller implements sending and receiving of working instructions such as control instructions, so the node controller may also be called a sending and receiving controller. The node controllers in the bed working node 103 and the corresponding node controllers on the main control circuit board can be considered as a group of node controllers, and the two node controllers in the same group can be used as the receiving controller and the sending controller respectively. After the sending controller sends the control command, the receiving controller receives the control command.

The control unit 104 is arranged in the main body of the operating bed. In a specific implementation manner, the control unit 104 may be a micro control unit MCU, which may be specifically arranged on the main control circuit board or separately from the main control circuit board.

The control unit 104 is used to select a communication network other than the currently used communication network as the target communication network among at least two communication networks when the operation bed is abnormal, and control the normal nodes in the N node controllers The controller switches from the currently used communication network to the target communication network, so that the bed working node connected to the normal node controller can continue to work through the target communication network to ensure the operation of the operating bed.

Specifically, the control unit 104 can detect whether the operating bed is operating abnormally, or the main control circuit board or other units can detect whether the operating bed is operating abnormally. Abnormal operation can be embodied as abnormal bed working nodes, such as bed working nodes can not normally regulate the movement of the operating bed such as rising, falling, and tilting. When abnormality occurs, the control unit 104 handles the abnormality. The operating bed provided in the embodiment of the present application is provided with at least two communication networks, and the control unit 104 can switch the communication network used.

After research, it is found that the cause of the abnormal operation of the operating bed may be the abnormality of the node controller, the abnormality of the communication network, etc. Therefore, the switching process of the control unit 104 is to first select the currently used communication network from at least two communication networks. A communication network other than the current communication network is used as the communication network used after switching. For example, if there are more than two communication networks, one of the other communication networks other than the currently used communication network can be arbitrarily selected. The communication network serves as the switched communication network. For ease of description, the communication network used after switching may be referred to as a target communication network, and then a normal node controller among the N node controllers is switched to the target communication network. It can be understood that if the abnormality is caused by the currently used communication network, the normal node controllers are all N node controllers; if the abnormality is caused by the failure of a certain node controller, the normal node controller is the faulty node A node controller other than a controller. There can be one or more faulty node controllers. It should be noted that the normal node controller switches to the target communication network, and the faulty node controller can disconnect from all communication networks, or continue to connect to the communication network before switching.

In the current operating bed system, a communication bus is usually set up. Each bed working node needs to arrange cables to connect to the node controller through the cable and then connect to the communication bus. The movement inevitably causes wear and tear on the cables, which may affect the communication between the operating table's working nodes and the communication bus. It can be seen from the above technical solutions that the operating bed system provided by the embodiment of the present application includes a control unit, a node controller, a bed working node and at least two communication networks, and a backup relationship is formed between each communication network. When abnormal operation occurs, the control unit can switch the normal node controller from the current communication network to other communication networks, so as to ensure that the bed working nodes connected to the node controller can continue to work through other communication networks, thus to a certain extent It improves the stability and fault tolerance of the operating table.

In order to realize that the node controller can switch between multiple different communication networks, the operating bed can also include N relays equal to the number of node controllers. The relays are electrically connected to the node controllers in one-to-one correspondence. The switching of the node controller between different communication networks is realized by controlling the switching of relays between different communication networks. The relays can be arranged on the main control circuit board, each relay is respectively electrically connected to a node controller, and each relay is respectively electrically connected to the control unit. When it is necessary to control the normal node controller among multiple node controllers to switch from the currently used communication network to the target communication network, a control command can be sent to the relay corresponding to the normal node controller, so that the node connected to the relay can control The router disconnects from the currently used communication network and establishes a connection with the target communication network.

Exemplarily, the relay can be a bistable relay, and the bistable relay has single-pole double-setting and action holding characteristics. If it receives the opposite control signal, if it receives the opposite control signal instructing it to change the current connection relationship, it will switch the connection relationship. In one case, that is, when an abnormality occurs during the operation of the operating bed, the control unit switches the normal node controller to a new communication network to maintain the operation of the operating bed to continue to work. It can keep the normal node controller still connected to the new communication network, and there will be no jump of the connection relationship, such as switching back to the abnormal communication network, so that when troubleshooting after power failure, according to the bistable relay The connection relationship maintained can determine that the node controller currently connected to the new communication network is a normal node controller, thereby reducing the scope of investigation of abnormal node controllers, simplifying the troubleshooting work to a certain extent, and improving the efficiency of troubleshooting. efficiency.

It should be noted that the relay is not limited to a bistable relay, as long as it is a relay with a power-down hold function, which is not limited in this application.

In a specific embodiment, the control unit 104 controls the normal node controllers among the N node controllers to switch from the currently used communication network to the target communication network, which can be specifically implemented in the following manner: control each node controller in turn Switch from the currently used communication network to the target communication network, and sequentially detect whether the bed working node connected to each node controller communicates with the control unit normally; if the bed working node connected to a certain node controller communicates with the control unit If abnormal, control a certain node controller to disconnect from the target communication network.

Specifically, the cause of the abnormal operation of the operating bed may not be clear in advance, so the control unit 104 can check each node controller in turn, that is, the switching sequence of the N node controllers can be set in advance, and the control unit 104 can follow the preset The switching sequence determines the first node controller to be switched, controls the first node controller to switch to the target communication network, and detects whether the bed working node connected to the first node controller after switching to the target communication network communicates normally, such as whether it communicates with The control unit 104 communicates normally, if the communication is normal, then determine that the first node controller is a normal node controller and maintain the connection between the normal node controller and the target communication network, if the communication is abnormal, then control the first node controller to disconnect from the The connection of the target communication network. The way of disconnecting may be disconnecting the first node controller from all communication networks, or switching the first node controller back to the previous communication network. Then, the control unit 104 selects the next node controller according to the preset switching sequence, and also performs the above switching detection step until the last node controller of the N node controllers. It should be noted that the switching of the communication network connected to the node controller by the control unit can be realized by the relay corresponding to the node controller. The specific implementation process can refer to the relevant description above, and will not be repeated here.

It can be seen that the control unit 104 performs troubleshooting on the N node controllers in sequence, and if all node controllers can communicate normally after being switched to the target communication network, it means that the communication network before switching is abnormal. If a certain node controller cannot communicate normally after switching to the target communication network, it can be determined that the node controller is a faulty node controller. It should be noted that the faulty node controller may not be the only cause of the abnormality of the operating bed, for example, if the communication network before switching may also have faulty abnormalities. If it is necessary to clarify the cause of the abnormality of the operating bed, it is necessary to further investigate the possible causes of the above-mentioned abnormality.

In order to further determine the cause of the abnormality or solve the fault, the operating bed can also include a display panel. The display panel can be set on the main body of the operating bed, or can be set separately from the main body of the operating bed. The display panel is communicated with the control unit, and the control unit is also used to obtain fault information related to the abnormal node controller or bus communication controller, such as fault code, fault time, fault type, etc., and correlate the abnormal node controller or bus communication controller The fault information is sent to the display panel, and the display panel is used to display the fault information to remind relevant personnel about the abnormal node controller when the operating bed is abnormal. This related situation can help relevant personnel analyze the more accurate abnormal cause of the abnormal operating bed It can also help relevant personnel to solve the fault problem.

It should be noted that if all node controllers communicate normally after being switched to the target communication network, it is determined that the communication network before switching is a faulty communication network. The communication network may specifically include a communication bus and bus communication controllers respectively arranged at both ends of the communication bus. For a faulty communication network, relevant fault information of the faulty communication network may also be sent to the control panel for display. Relevant fault information includes fault code, fault time, fault type, etc. The inspectors can further determine the specific abnormal causes of the faulty communication network according to the relevant fault information, such as communication bus faults, bus communication controller faults, etc.

See Figure 3, which provides a schematic diagram of the connection relationship between the main control circuit board, the bed working node and the control unit. As shown in FIG. 3 , the main control circuit board is provided with two communication networks, which can be referred to as communication network 1 and communication network 2 respectively for the convenience of description. The communication network 1 includes a communication bus CAN1, and two bus communication controllers CAN1 are respectively connected to two ends of the communication bus CAN1, wherein one bus communication controller CAN1 is set on the main control circuit board, and the other bus communication controller CAN1 is set on the control circuit board. board6. Similarly, the communication network 2 includes a communication bus CAN2, and two bus communication controllers CAN2 are respectively connected to two ends of the communication bus CAN2, wherein one bus communication controller CAN2 is arranged on the main control circuit board, and the other bus communication controller CAN2 Set on the control panel 6.

It should be noted that the control board 6 can specifically be a power control board, and the control board 1, the control board 2...the control board 5 can be regarded as bed working nodes. Control board 1 can be a pedal control board, control board 2 can be a wire controller control board, control board 3 can be a head board control board, control board 4 can be a back board control board, and control board 5 can be a leg board control board . Of course, this is only an example, and each control board may also be a control board of other types of bed working nodes in practical applications, which is not limited in this application.

It should be noted that the control board 6 cooperates with the main control circuit board to set up the communication network 1 and the communication network 2, and the control board 1 to the control board 5 can be regarded as bed working nodes. For the five control boards, five node controllers CAN are arranged on the main control circuit board, and each node controller CAN is electrically connected to one control board respectively. It should be noted that the node controller CAN may not be set on the main control circuit board, but may also be set on a unit independently set up from the main control circuit board.

In the case that the communication network is a CAN bus network, the CAN bus network includes CANH lines and CANL lines for generating differential signals, and each relay is connected to the CAN bus network through CANH lines and CANL lines. Specifically, the node controller CAN is connected to each communication bus through two lines, the two lines are CANH line and CANL line, respectively corresponding to high level and low level, and the two lines can form a differential signal. The switching of the node controller CAN on the two communication buses is realized through bistable relays. As shown in Figure 3, the CAN corresponding to the control board 1 is connected to any communication bus through the bistable relay C1, and the CAN corresponding to the control board 2 is connected to any communication bus through the bistable relay C2, ..., the control board 5 The corresponding CAN is connected to any communication bus through the bistable relay C5. It can be understood that the bistable relay needs to switch the CANH line and the CANL line to the same communication bus at the same time, so as to ensure that the node controller CAN is connected to the communication bus.

The main control circuit board is provided with a control unit MCU. When the operation bed is abnormal, the control unit MCU can send switching instructions to the bistable relay drivers corresponding to each node controller CAN, so that the bistable relays will switch between the two routes. (CANH line and CANL line) are switched from a certain communication bus to another communication bus, such as switching from the communication bus CAN1 to the communication bus CAN2. As shown in Figure 3, the four lines corresponding to the bistable relay C3 can be CAN1H, CAN2H, CAN1L and CAN2L from top to bottom, and the control unit MCU sends a switching command to the driver of the bistable relay C3 to instruct it to switch the bistable relay C3 The two switches of the steady-state relay C3 are respectively switched from CAN1H to CAN2H and from CAN1L to CAN2L, so that the node controller CAN is switched from the communication bus CAN1 to the communication bus CAN2, and then the control board 3 is switched from the communication bus CAN1 to CAN2L. Communication bus CAN2.

For example, assuming that the operating bed is currently using the communication bus CAN1 for communication, if the operating bed is working abnormally, the control unit MCU can switch and connect each control board through the communication bus CAN1 in the order from control board 1 to control board 5 To the communication bus CAN2, and sequentially detect whether the communication of each control board is normal, if the communication is normal, continue to maintain the connection between the control board and the communication bus CAN2, if the communication is abnormal, switch the control board back to the communication bus CAN1. In this way, the normal working control board can be guaranteed to use the communication bus CAN2 to communicate, so that the operating bed can continue to work and improve the stability of the operating bed.

The embodiment of this application also provides a solution to the cause of the abnormality of the working node of the positioning bed, specifically:

The control unit is also used to control one of the N node controllers to switch from the currently used communication network to the target communication network; If abnormal and the communication between the connected bed working node and the control unit is abnormal after a certain node controller is switched, it is determined that a certain node controller is the current abnormal node controller, and the current abnormal node controller is switched back to the currently used communication network; Detect the fault condition of the current abnormal node controller, and determine the abnormal cause of the current abnormal node controller according to the fault condition.

Among them, "the communication between the bed working node and the control unit connected before the switch of a certain node controller is abnormal" can correspond to the first column of control board 1-control board 6 in the following table 1, that is, in the control board 1-control board 6 Any control board cannot communicate under the CAN1 bus; "The communication between the connected bed working node and the control unit is abnormal after the controller of a certain node is switched" can correspond to the first column of control board 1-control board 6 in Table 1 below, that is Any control board in control board 1-control board 6 switches to the CAN2 bus and still cannot communicate.

It can be seen that after the control unit controls a certain node controller to switch the communication network, it determines whether the certain node controller is abnormal according to the communication conditions of the bed working nodes connected to the node controller before and after switching. When it is abnormal, switch it back to the previous communication network to ensure its normal operation as much as possible. Further, it can detect the fault situation and determine the cause of the abnormality, so as to provide a basis for fault maintenance.

The control unit can determine specific abnormal causes according to different types of fault conditions.

For example, the control unit is specifically configured to determine that the cause of the abnormality includes a short circuit of the current abnormal node controller or a short circuit of the cable of the currently used communication network if the fault condition of the current abnormal node controller includes the first fault condition and the second fault condition ;in:

The first failure situation is that when the current abnormal node controller is connected to the currently used communication network, the bed working nodes connected to other node controllers except the current abnormal node controller among the N node controllers have abnormal communication with the control unit; the second The fault condition is that after the current abnormal node controller is switched from the currently used communication network connection to the target communication network, the communication of the target communication network is abnormal.

Combined with Table 1 to illustrate: the first fault situation corresponds to the second column in Table 1 below, that is, any control board cannot communicate with the rest of the control boards under the CAN1 bus; the second fault situation corresponds to the fourth column in Table 1 below, namely Any control board is switched to the CAN2 bus, and the CAN2 bus cannot communicate. It can be seen from Table 1 that the CAN node of the control board is damaged (short circuit) or the cable is short-circuited under these two fault conditions.

As another example, the control unit is specifically configured to determine that if the fault condition of the current abnormal node controller includes the third fault condition and the fourth fault condition, determining the cause of the abnormality includes: the current abnormal node controller is disconnected or the line of the currently used communication network is disconnected. The cable breaks; among them,

The third failure situation is that when the current abnormal node controller is connected to the currently used communication network, the bed working node connected to the other node controllers except the current abnormal node controller among the N node controllers communicates normally with the control unit; the fourth The failure condition is that after the current abnormal node controller is switched from the currently used communication network connection to the target communication network, the communication of the target communication network is normal.

Combined with Table 1 to illustrate: the third fault situation corresponds to the second column in Table 1 below, that is, any control board can communicate with the rest of the control boards under the CAN1 bus; the fourth fault situation corresponds to the fourth column in Table 1 below, namely Any control board switches to the CAN2 bus, and the CAN2 bus can communicate. It can be seen from Table 1 that the CAN node of the control board is damaged (open circuit) or the cable is disconnected under these two fault conditions.

Table 1 provides an example of a troubleshooting scheme for the main control circuit board. Wherein, the control board 1 - the control board 6 can be regarded as the control board 1 - the control board 6 shown in FIG. 3 , and the main control circuit board and each control board are currently connected to the CAN1 bus.

Table 1

The embodiment of the present application also provides a solution to the abnormal cause of the bus communication controller, namely:

The control unit is also used to control the bus communication controller to switch from the currently used communication network to the target communication network; if the communication between the bus communication controller and the control unit is abnormal before switching, the communication between the bus communication controller and the control unit is normal after switching, and After the switching of the bus communication controller, the communication of the target communication network is normal, then keep the bus communication controller connected to the target communication network, and detect the failure of the bus communication controller, and determine the abnormal cause of the bus communication controller according to the failure.

One situation is: if the fault condition includes that when the bus communication controller is connected to the currently used communication network, the bed working node connected to the N node controllers communicates abnormally with the control unit, then the control unit determines that the cause of the abnormality includes the occurrence of the bus communication controller short circuit. Taking the main control circuit board in Table 1 as an example, the fault condition and abnormal cause correspond to the first row of the main control circuit board in Table 1.

One situation is: if the fault condition includes that when the bus communication controller is connected to the currently used communication network, the bed working nodes connected to the N node controllers communicate with the control unit normally, then the control unit determines that the cause of the abnormality includes the occurrence of the bus communication controller broken circuit. Taking the main control circuit board in Table 1 as an example, the fault condition and abnormal cause correspond to the second row of the main control circuit board in Table 1.

It can be understood that the operation abnormality of the operating bed usually includes several aspects, such as the abnormality of the communication bus and/or the abnormality of any bus communication controller, the abnormality of the node controller corresponding to any bed working node (including the node on the side of the bed working node controller and the node controller on the side of the main control circuit board), the cable connecting any bed working node to the node controller CAN is abnormal, etc. The following describes the switching process of the node controller CAN for different abnormal situations.

Situation 1: Assume that the bus communication controller CAN1 on the main control circuit board fails, such as a short circuit between the CANH line and the CANL line of the bus communication controller CAN1, which causes the level of the entire communication bus CAN1 to be abnormal, so that the overall communication bus CAN1 cannot be normal Communication, at this time the control unit MCU can gradually switch each node controller to the communication bus CAN2. specifically:

The main control circuit board and the control board 6 use the communication bus CAN2 to communicate, if the communication is normal, continue to the next step;

The control unit MCU drives the driver of the bistable relay 1, and switches the control board 1 to the communication bus CAN2. If the communication is normal, continue to the next step; if the communication is abnormal, switch the control board 1 back to the communication bus CAN1.

The control unit MCU drives the driver of the bistable relay 2, and switches the control board 2 to the communication bus CAN2. If the communication is normal, continue to the next step; if the communication is abnormal, switch the control board 2 back to the communication bus CAN1.

The control unit MCU drives the driver of the bistable relay 3, and switches the control board 3 to the communication bus CAN2. If the communication is normal, continue to the next step; if the communication is abnormal, switch the control board 3 back to the communication bus CAN1.

The control unit MCU drives the driver of the bistable relay 4, and switches the control board 4 to the communication bus CAN2. If the communication is normal, continue to the next step; if the communication is abnormal, switch the control board 4 back to the communication bus CAN1.

The control unit MCU drives the driver of the bistable relay 5, and switches the control board 5 to the communication bus CAN2. If the communication is normal, continue to the next step; if the communication is abnormal, switch the control board 5 back to the communication bus CAN1.

Situation 2: Assume that the bus communication controller CAN1 on the main control circuit board fails, for example, the CANH line and CANL line of the bus communication controller CAN1 are disconnected, so that the main control circuit board cannot communicate with the communication bus CAN1, but the communication bus Each node controller CAN connected to CAN1 can communicate with each other, and at this time, the control unit MCU can gradually switch each node controller to the communication bus CAN2.

Case 3: Assume that the node controller CAN of any control board from control board 1 to control board 5 fails, such as a short circuit between the CANH line and the CANL line of a certain node controller CAN, resulting in the CAN1 level of the entire communication network abnormal, so that the communication network CAN1 cannot communicate normally, then the communication network CAN1 is no longer used for communication, and the control unit MCU can gradually switch each node controller to the communication bus CAN2.

Situation 4: Assume that the node controller CAN of any control board from control board 1 to control board 5 is faulty. The communication network CAN1 performs communication, but the other node controllers CAN of the communication network CAN1 can communicate with each other. The control unit MCU can gradually switch each node controller to the communication bus CAN2.

Case 5: Assume that any of the control boards from control board 1 to control board 5 is connected to the cable of the node controller CAN to fail, resulting in a short circuit between the CANH line and the CANL line of the control board, which in turn causes the CAN1 level of the entire communication bus Abnormal, so that the communication bus CAN1 as a whole cannot communicate normally. At this time, the communication bus CAN1 is no longer used for communication, and the control unit MCU can gradually switch each node controller to the communication bus CAN2.

Situation 6: Assume that the cable connecting any control board from control board 1 to control board 5 to the node controller CAN is faulty, resulting in an open circuit between the CANH line and CANL line of the control board, which in turn causes the control board to be unable to communicate with The bus CAN1 communicates, but the rest of the nodes of the communication bus CAN1 can communicate, and the control unit MCU can gradually switch the controllers of each node to the communication bus CAN2.

Situation 7: Assume that the bus communication controller CAN1 of the control board 6 has a short-circuit fault or the cable connecting the bus communication controller CAN1 to the main control circuit board is short-circuited, resulting in a short circuit between the CANH line and the CANL line of the bus communication controller CAN1, and then As a result, the level of the entire communication bus CAN1 is abnormal, so that the overall communication bus CAN1 cannot communicate normally. At this time, the communication bus CAN1 is no longer used for communication, and the control unit MCU can gradually switch each node controller to the communication bus CAN2.

Situation 8: Assume that the bus communication controller CAN1 of the control board 6 has an open circuit fault or the cable connecting the bus communication controller CAN1 to the main control circuit board is disconnected, resulting in an open circuit between the CANH line and the CANL line of the bus communication controller CAN1. The board 6 cannot communicate with the communication bus CAN1. At this time, the communication bus CAN1 is no longer used for communication, and the control unit MCU can gradually switch each node controller to the communication bus CAN2.

The above cases 2 to 8 can still be switched according to the switching steps provided in case 1. Through the above steps, the communication bus is gradually converted from the communication bus CAN1 to the communication bus CAN2. For example, repeat the operation until the abnormal node controller is identified, disconnect the abnormal node controller from the communication bus CAN1, or switch the normal node controller to the communication bus CAN2 and keep the abnormal node controller in the communication bus CAN1, so as to ensure When some node controllers of the operating table cannot work, it is guaranteed that the operating table can complete other tasks until the end of the operation.

In order to let the user understand the failure of the operating bed system, the failure information can also be output in the form of an alarm. Specifically, the operating bed system may further include an alarm unit.

The control unit is also used to obtain fault information related to the current abnormal node controller or bus communication controller, and control the alarm unit to output fault information related to the current abnormal node controller or bus communication controller. The fault information includes at least the cause of the abnormality. Wherein, the fault information includes at least one of sound alarm information, text alarm information and image alarm information; correspondingly, the alarm unit includes: at least a display panel for outputting text alarm information and image alarm information, and/or, at least An alarm that outputs an audible alarm message.

Corresponding to the above operating bed system, the present application also provides a fault handling method for the operating bed system, and the fault handling method is applied to the operating bed system.

Specifically, the operating bed system includes a main body of the operating bed, a main control circuit board, and N bed working nodes, where N is greater than or equal to 2. Two communication networks and N node controllers, each node controller can be connected to any communication network, and the bed working nodes and node controllers are electrically connected in one-to-one correspondence;

The fault handling method includes: when the operation bed is abnormal, select a communication network other than the currently used communication network as the target communication network in at least two communication networks; control the normal nodes in the N node controllers The controller switches the connection from the currently used communication network to the target communication network.

In a specific embodiment, the operating bed also includes: N relays, the relays are electrically connected to the node controllers in one-to-one correspondence; control the normal node controllers in the N node controllers to switch from the currently used communication network to the target The communication network includes: sending control instructions to the relays corresponding to the normal node controllers among the N node controllers, so that the node controllers connected to the relays disconnect from the currently used communication network and establish a connection with the target communication network. road connection.

In a specific embodiment, controlling the normal node controllers among the N node controllers to switch from the currently used communication network to the target communication network includes: controlling each node controller to switch from the currently used communication network in turn Connect to the target communication network, and sequentially detect whether the bed working node connected to the controller of each node communicates with the control unit normally; The device disconnects from the target communication network.

In a specific embodiment, the fault handling method further includes: controlling a certain node controller to switch back to the currently used communication network.

In a specific embodiment, the abnormal operation of the operating bed includes: abnormality of a node controller corresponding to any bed working node; and/or abnormality of a cable connecting any bed working node to the corresponding node controller.

In a specific embodiment, the fault handling method further includes: controlling a certain node controller among the N node controllers to switch from the currently used communication network to the target communication network; If the communication between the connected bed working node and the control unit is abnormal and the communication between the connected bed working node and the control unit is abnormal after the controller of a certain node is switched, then a certain node controller is determined to be the current abnormal node controller, and the current abnormal node is controlled switch back to the currently used communication network; detect the fault condition of the current abnormal node controller, and determine the abnormal cause of the current abnormal node controller according to the fault condition.

In a specific embodiment, determining the abnormal cause of the current abnormal node controller according to the fault situation includes: if the fault situation of the current abnormal node controller includes the first fault situation and the second fault situation, then determining the abnormal cause includes: the current abnormal node controller A short circuit occurs in the node controller or a short circuit occurs in the currently used communication network cable; wherein: the first fault condition is that when the current abnormal node controller is connected to the currently used communication network, among the N node controllers except the current abnormal node control The communication between the bed working node and the control unit connected to other node controllers outside the machine is abnormal; the second fault situation is that after the current abnormal node controller is switched from the currently used communication network to the target communication network, the communication of the target communication network is abnormal .

In a specific embodiment, determining the abnormal cause of the current abnormal node controller according to the fault situation includes: if the fault situation of the current abnormal node controller includes the third fault situation and the fourth fault situation, then determining the abnormal cause includes: the current abnormal node controller The node controller is disconnected or the currently used communication network cable is disconnected; wherein, the third fault condition is that when the current abnormal node controller is connected to the currently used communication network, among the N node controllers except the current abnormal node control The communication between the bed working node and the control unit connected to other node controllers outside the machine is normal; the fourth fault situation is that after the current abnormal node controller switches from the currently used communication network to the target communication network, the target communication network communicates normally .

In a specific embodiment, the communication network includes a communication bus and bus communication controllers respectively arranged at both ends of the communication bus; abnormal operation of the operating bed includes: abnormality of the communication bus and/or abnormality of any bus communication controller.

In a specific embodiment, the fault handling method further includes: controlling the bus communication controller to switch from the currently used communication network to the target communication network; if the communication between the bus communication controller and the control unit is abnormal before switching, the bus communication controller After the switching, the communication with the control unit is normal, and the communication of the target communication network is normal after the switching of the bus communication controller, then keep the bus communication controller connected to the target communication network, and detect the fault condition of the bus communication controller, and determine according to the fault condition The cause of the abnormality of the bus communication controller.

In a specific embodiment, determining the cause of the abnormality of the bus communication controller according to the failure situation includes: if the failure situation includes that the bus communication controller is connected to the currently used communication network, the bed working nodes connected to the N node controllers are connected to the If the communication of the control unit is abnormal, it is determined that the cause of the abnormality includes a short circuit of the bus communication controller.

In a specific embodiment, determining the cause of the abnormality of the bus communication controller according to the failure situation includes: if the failure situation includes that the bus communication controller is connected to the currently used communication network, the bed working nodes connected to the N node controllers are connected to the If the communication of the control unit is normal, it is determined that the cause of the abnormality includes an open circuit of the bus communication controller.

In a specific embodiment, the operating bed system further includes an alarm unit, and the method further includes: obtaining fault information related to the current abnormal node controller or the bus communication controller; controlling the alarm unit to output the fault information related to the current abnormal node controller or the bus communication controller fault information, the fault information at least includes the cause of the exception.

In a specific embodiment, the fault information includes at least one of sound alarm information, text alarm information and image alarm information; the alarm unit includes: a display panel for outputting text alarm information and image alarm information at least, and/or, At least an alarm for outputting an audible alarm message.

The embodiment of the present application also provides a medical device, including: a medical device main body, a main control circuit board, N working nodes, and a control unit. Medical equipment includes, but is not limited to, operating table systems, ventilators, monitoring equipment, central stations, and more.

The main control circuit board is arranged in the main body of the medical equipment, and is provided with at least two communication networks and N node controllers, wherein each node controller can be connected to any communication network respectively, and N is greater than or equal to 2;

There are N working nodes, and the working nodes are electrically connected to the node controller in one-to-one correspondence;

The control unit is set in the main body of the medical equipment, and is used to select a communication network other than the currently used communication network as the target communication network among at least two communication networks when the medical equipment operates abnormally; control N A normal node controller among the node controllers switches the connection from the currently used communication network to the target communication network.

In a specific embodiment, when controlling a normal node controller among the N node controllers to switch from the currently used communication network to the target communication network, the control unit is specifically used to: control each node controller to sequentially switch from the current Switch the used communication network to the target communication network, and sequentially detect whether the bed working node connected to each node controller communicates with the control unit normally; if the bed working node connected to a certain node controller communicates abnormally with the control unit, Then control a certain node controller to disconnect from the target communication network.

In a specific embodiment, the control unit = is also used to control a certain node controller in the N node controllers to switch from the currently used communication network to the target communication network; if a certain node controller switches before If the communication between the connected bed working node and the control unit is abnormal and the communication between the connected bed working node and the control unit is abnormal after a certain node controller is switched, then a certain node controller is determined to be the current abnormal node controller, and the current abnormal node The controller switches back to the currently used communication network; detects the fault condition of the current abnormal node controller, and determines the abnormal cause of the current abnormal node controller according to the fault condition.

In a specific embodiment, the communication network includes a communication bus and bus communication controllers respectively arranged at both ends of the communication bus; abnormal operation of the operating bed includes: abnormal communication bus and/or abnormality of any bus communication controller; the control unit also It is used to control the bus communication controller to switch from the currently used communication network to the target communication network; if the communication between the bus communication controller and the control unit is abnormal before switching, the communication between the bus communication controller and the control unit is normal after switching, and the bus communication After the controller is switched, the communication of the target communication network is normal, then the bus communication controller is kept connected to the target communication network, and the fault condition of the bus communication controller is detected, and the abnormal cause of the bus communication controller is determined according to the fault condition.

It should be noted that, for descriptions about medical equipment and troubleshooting methods, reference may be made to the above related descriptions, and details are not repeated here.

For the above description of the disclosed embodiments, the features recorded in each embodiment in this specification can be replaced or combined with each other, so that those skilled in the art can implement or use the present application. This document is described with reference to various exemplary embodiments. However, those skilled in the art will recognize that changes and modifications can be made to the exemplary embodiments without departing from the scope herein. For example, the various operational steps, as well as the components used to perform the operational steps, may be implemented in different ways depending on the particular application or considering any number of cost functions associated with the operation of the system (e.g., one or more steps may be deleted, modified or incorporated into other steps).

The terms "first", "second" and the like in the description and claims herein and the above drawings are used to distinguish different objects, rather than to describe a specific order. Furthermore, the terms "include" and "have", as well as any variations thereof, are intended to cover a non-exclusive inclusion. For example, a process, method, system, product or device comprising a series of steps or units is not limited to the listed steps or units, but optionally also includes unlisted steps or units, or optionally further includes For other steps or units inherent in these processes, methods or apparatuses.

In addition, the principles herein may be embodied in a computer program product on a computer-readable storage medium having computer-readable program code preloaded thereon, as understood by those skilled in the art. Any tangible, non-transitory computer-readable storage medium may be used, including magnetic storage devices (hard disks, floppy disks, etc.), optical storage devices (CD-ROM, DVD, Blu Ray discs, etc.), flash memory and/or the like . These computer program instructions can be loaded into a general-purpose computer, special-purpose computer, or other programmable data processing equipment to form a machine, so that these instructions executed on the computer or other programmable data processing apparatus can generate an apparatus for implementing specified functions. These computer program instructions may also be stored in a computer-readable memory which can instruct a computer or other programmable data processing device to operate in a particular manner such that the instructions stored in the computer-readable memory form a Manufactures, including implementing devices for implementing specified functions. Computer program instructions can also be loaded on a computer or other programmable data processing device, thereby performing a series of operational steps on the computer or other programmable device to produce a computer-implemented process, so that the computer or other programmable device Instructions may provide steps for performing specified functions.

The foregoing detailed description has been described with reference to various embodiments. However, those skilled in the art will recognize that various modifications and changes can be made without departing from the scope of the present disclosure. Accordingly, the disclosure is to be considered in an illustrative rather than a restrictive sense, and all such modifications are intended to be embraced within its scope. Also, advantages, other advantages and solutions to problems have been described above with respect to various embodiments. However, neither benefits, advantages, solutions to problems, nor any elements that lead to these, nor make the solutions more definite, should be construed as critical, required, or necessary. As used herein, the term "comprises" and any other variants thereof are non-exclusive, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements, but also those not expressly listed or not part of the process. , method, system, article or other element of a device. Furthermore, as used herein, the term "coupled" and any other variations thereof refer to a physical connection, an electrical connection, a magnetic connection, an optical connection, a communicative connection, a functional connection, and/or any other connection.

The above examples only express several implementation modes, and the description thereof is relatively specific and detailed, but it should not be construed as limiting the patent scope of the present invention. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent for the present invention should be based on the appended claims.

Claims

An operating bed system, characterized in that it comprises:

The main body of the operating bed is at least obtained from the combined structure of the column, the base and the table top, wherein the table top includes at least a head board, a back board, a seat board and a leg board;

The main control circuit board is arranged in the main body of the operating bed, and is provided with at least two communication networks and N node controllers, wherein each of the node controllers can be respectively connected to any of the communication networks, N is greater than or equal to 2;

N bed working nodes, the bed working nodes are electrically connected to the node controllers in one-to-one correspondence;

A control unit, set in the main body of the operating bed, used to select a communication network other than the currently used communication network as the target communication among the at least two communication networks when the operation bed is abnormal Network: controlling a normal node controller among the N node controllers to switch from the currently used communication network to the target communication network.
The operating bed system according to claim 1, wherein the bed working node comprises at least one of the following three items: an instruction input control board, an instruction execution control board and a sensor control board.
The operating bed system according to claim 1, wherein the operating bed further comprises: N relays, and the relays are electrically connected to the node controllers in one-to-one correspondence;

When controlling a normal node controller among the N node controllers to switch from the currently used communication network to the target communication network, the control unit is specifically configured to:

Send a control instruction to the relay corresponding to the normal node controller among the N node controllers, so that the node controller connected to the relay disconnects from the currently used communication network and establishes a connection with the target Communication network connection.
The operating bed system according to claim 3, wherein the communication network is a CAN bus network, the CAN bus network includes CANH lines and CANL lines for generating differential signals, and each of the relays passes through CANH lines and CANL lines are connected to the CAN bus network.
The operating bed system according to claim 1, wherein when controlling a normal node controller among the N node controllers to switch from the currently used communication network to the target communication network, The control unit is specifically used for:

controlling each of the node controllers to sequentially switch from the currently used communication network to the target communication network, and sequentially detecting whether the bed working node connected to each of the node controllers communicates normally with the control unit ;

If the bed working node connected to a certain node controller communicates abnormally with the control unit, the certain node controller is controlled to disconnect from the target communication network.
The operating bed system according to claim 5, wherein the control unit is further configured to: control the certain node controller to switch back to the currently used communication network.
The operating bed system according to claim 1, wherein the abnormal operation of the operating bed includes: abnormality of the node controller corresponding to any of the bed working nodes; and/or, any of the bed working nodes connected to The cable of the corresponding node controller is abnormal.
The operating bed system according to any one of claims 1 to 7, characterized in that,

The control unit is further configured to control a node controller among the N node controllers to switch from the currently used communication network to the target communication network;

If the communication between the connected bed working node and the control unit is abnormal before the switch of the certain node controller and the communication between the connected bed working node and the control unit is abnormal after the switching of the certain node controller, it is determined that the The certain node controller is the current abnormal node controller, and the current abnormal node controller is switched back to the currently used communication network;

Detecting a fault condition of the current abnormal node controller, and determining an abnormal cause of the current abnormal node controller according to the fault condition.
The operating bed system according to claim 8, wherein,

The control unit is specifically configured to determine that the cause of the abnormality includes: a short circuit of the current abnormal node controller or the There is a short circuit in the communication network cable currently in use; where:

The first failure situation is that when the current abnormal node controller is connected to the currently used communication network, the bed connected to other node controllers except the current abnormal node controller among the N node controllers is working The communication between the node and the control unit is abnormal;

The second fault condition is that after the current abnormal node controller is switched from the currently used communication network to the target communication network, the communication of the target communication network is abnormal.
The operating bed system according to claim 8, wherein,

The control unit is specifically configured to determine that the cause of the abnormality includes: a circuit break of the current abnormal node controller or the The currently used communication network cable is disconnected; among them,

The third failure situation is that when the current abnormal node controller is connected to the currently used communication network, the bed connected to other node controllers except the current abnormal node controller among the N node controllers is working The communication between the node and the control unit is normal;

The fourth fault condition is that after the current abnormal node controller is switched from the currently used communication network to the target communication network, the communication of the target communication network is normal.
The operating bed system according to any one of claims 1 to 7, wherein the communication network includes a communication bus and bus communication controllers respectively arranged at both ends of the communication bus;

The operation abnormality of the operating bed includes: abnormality of the communication bus and/or abnormality of any of the bus communication controllers.
The operating bed system according to claim 11, wherein,

The control unit is further configured to control the bus communication controller to switch from the currently used communication network to the target communication network;

If the communication between the bus communication controller and the control unit is abnormal before switching, the communication between the bus communication controller and the control unit is normal after switching, and the communication of the target communication network is normal after the switching of the bus communication controller , then keep the bus communication controller connected to the target communication network, detect a fault condition of the bus communication controller, and determine an abnormal cause of the bus communication controller according to the fault condition.
The operating bed system according to claim 12, wherein,

The control unit is specifically configured to communicate with the control unit with the bed working nodes connected to the N node controllers if the fault condition includes that the bus communication controller is connected to the currently used communication network If it is abnormal, it is determined that the cause of the abnormality includes a short circuit of the bus communication controller.
The operating bed system according to claim 12, wherein,

The control unit is specifically configured to communicate with the control unit with the bed working nodes connected to the N node controllers if the fault condition includes that the bus communication controller is connected to the currently used communication network If it is normal, it is determined that the cause of the abnormality includes that the bus communication controller is disconnected.
The operating bed system according to claim 8 or 12, further comprising an alarm unit;

The control unit is further configured to obtain fault information related to the current abnormal node controller or the bus communication controller, and control the alarm unit to output fault information related to the current abnormal node controller or the bus communication controller. fault information, the fault information includes at least the cause of the abnormality.
The operating bed system according to claim 15, wherein the fault information includes at least one of sound alarm information, text alarm information and image alarm information;

The alarm unit includes: at least a display panel for outputting the text alarm information and the image alarm information, and/or an alarm device for at least outputting the sound alarm information.
A method for troubleshooting an operating bed system, characterized in that the operating bed system includes an operating bed main body, a main control circuit board, and N bed working nodes, where N is greater than or equal to 2, wherein the operating bed main body consists of at least a column , base and table combination structure, the main control circuit board is provided with at least two communication networks and N node controllers, each of the node controllers can be respectively connected to any one of the communication networks, the The bed working nodes are electrically connected to the node controllers in one-to-one correspondence;

The methods include:

When the operation bed is abnormal, selecting a communication network other than the currently used communication network as the target communication network among the at least two communication networks;

Controlling a normal node controller among the N node controllers to switch from the currently used communication network to the target communication network.
The method according to claim 17, wherein the operating bed further comprises: N relays, the relays are electrically connected to the node controllers in one-to-one correspondence;

The controlling a normal node controller among the N node controllers to switch from the currently used communication network to the target communication network includes:

Send a control instruction to the relay corresponding to the normal node controller among the N node controllers, so that the node controller connected to the relay disconnects from the currently used communication network and establishes a connection with the target Communication network connection.
The method according to claim 18, wherein the controlling a normal node controller among the N node controllers to switch from the currently used communication network to the target communication network includes:

controlling each of the node controllers to sequentially switch from the currently used communication network to the target communication network, and sequentially detecting whether the bed working node connected to each of the node controllers communicates normally with the control unit ;

If the bed working node connected to a certain node controller communicates abnormally with the control unit, the certain node controller is controlled to disconnect from the target communication network.
The method according to claim 19, further comprising:

Controlling the certain node controller to switch back to the currently used communication network.
The method according to claim 17, wherein the operation abnormality of the operating bed includes: the node controller corresponding to any of the bed working nodes is abnormal; and/or, any of the bed working nodes are connected to the corresponding The cable of the node controller is abnormal.
The method according to claim 17, further comprising:

controlling one of the N node controllers to switch from the currently used communication network to the target communication network;

If the communication between the connected bed working node and the control unit is abnormal before the switch of the certain node controller and the communication between the connected bed working node and the control unit is abnormal after the switching of the certain node controller, it is determined that the The certain node controller is the current abnormal node controller, and the current abnormal node controller is switched back to the currently used communication network;

Detecting a fault condition of the current abnormal node controller, and determining an abnormal cause of the current abnormal node controller according to the fault condition.
The method according to claim 22, wherein the determining the abnormality cause of the current abnormal node controller according to the fault condition comprises:

If the fault condition of the current abnormal node controller includes the first fault condition and the second fault condition, then determining the cause of the abnormality includes: a short circuit occurs in the current abnormal node controller or the currently used communication network cable A short circuit occurs; where:

The first failure situation is that when the current abnormal node controller is connected to the currently used communication network, the bed connected to other node controllers except the current abnormal node controller among the N node controllers is working The communication between the node and the control unit is abnormal;

The second fault condition is that after the current abnormal node controller is switched from the currently used communication network to the target communication network, the communication of the target communication network is abnormal.
The method according to claim 22, wherein the determining the abnormality cause of the current abnormal node controller according to the fault condition comprises:

If the fault condition of the current abnormal node controller includes the third fault condition and the fourth fault condition, then determining the cause of the abnormality includes: the current abnormal node controller is disconnected or the currently used communication network cable A circuit break occurs; where,

The third failure situation is that when the current abnormal node controller is connected to the currently used communication network, the bed connected to other node controllers except the current abnormal node controller among the N node controllers is working The communication between the node and the control unit is normal;

The fourth fault condition is that after the current abnormal node controller is switched from the currently used communication network to the target communication network, the communication of the target communication network is normal.
The method according to claim 17, characterized in that, the communication network includes a communication bus and bus communication controllers respectively arranged at both ends of the communication bus; the abnormal operation of the operating bed includes: an abnormal communication bus and/or Any of the bus communication controllers is abnormal.
The method according to claim 25, further comprising:

controlling the bus communication controller to switch from the currently used communication network to the target communication network;

If the communication between the bus communication controller and the control unit is abnormal before switching, the communication between the bus communication controller and the control unit is normal after switching, and the communication of the target communication network is normal after the switching of the bus communication controller , then keep the bus communication controller connected to the target communication network, detect a fault condition of the bus communication controller, and determine an abnormal cause of the bus communication controller according to the fault condition.
The method according to claim 26, wherein the determining the cause of the abnormality of the bus communication controller according to the fault condition comprises:

If the fault condition includes that when the bus communication controller is connected to the currently used communication network, the bed working node connected to the N node controllers communicates abnormally with the control unit, then determine the cause of the abnormality Including the short circuit of the bus communication controller.
The method according to claim 26, wherein the determining the cause of the abnormality of the bus communication controller according to the fault condition comprises:

If the fault condition includes that when the bus communication controller is connected to the currently used communication network, the bed working node connected to the N node controllers communicates normally with the control unit, then determine the cause of the abnormality Include the bus communication controller for an open circuit.
The method according to claim 21 or 26, wherein the operating bed system further comprises an alarm unit, and the method further comprises:

Obtain fault information related to the current abnormal node controller or the bus communication controller;

The alarm unit is controlled to output fault information related to the current abnormal node controller or the bus communication controller, and the fault information includes at least the reason for the abnormality.
The method according to claim 29, wherein the fault information includes at least one of sound alarm information, text alarm information and image alarm information;

The alarm unit includes: at least a display panel for outputting the text alarm information and the image alarm information, and/or an alarm device for at least outputting the sound alarm information.
A medical device, characterized in that it comprises:

The subject of medical equipment;

The main control circuit board is arranged in the main body of the medical equipment, and is provided with at least two communication networks and N node controllers, wherein each of the node controllers can be respectively connected to any of the communication networks, N is greater than or equal to 2;

N working nodes, the working nodes are electrically connected to the node controllers in one-to-one correspondence;

A control unit, arranged in the main body of the medical device, is used to select a communication network other than the currently used communication network as the target communication among the at least two communication networks when the medical device is operating abnormally Network: controlling a normal node controller among the N node controllers to switch from the currently used communication network to the target communication network.
The medical device according to claim 31, wherein when controlling a normal node controller among the N node controllers to switch from the currently used communication network to the target communication network, the The control unit described above is used in particular for:

controlling each of the node controllers to sequentially switch from the currently used communication network to the target communication network, and sequentially detecting whether the bed working node connected to each of the node controllers communicates normally with the control unit ;

If the bed working node connected to a certain node controller communicates abnormally with the control unit, the certain node controller is controlled to disconnect from the target communication network.
A medical device according to claim 31 or 32, wherein,

The control unit is further configured to control a node controller among the N node controllers to switch from the currently used communication network to the target communication network;

If the communication between the connected bed working node and the control unit is abnormal before the switch of the certain node controller and the communication between the connected bed working node and the control unit is abnormal after the switching of the certain node controller, it is determined that the The certain node controller is the current abnormal node controller, and the current abnormal node controller is switched back to the currently used communication network;

Detecting a fault condition of the current abnormal node controller, and determining an abnormal cause of the current abnormal node controller according to the fault condition.
The medical device according to claim 31 or 32, wherein the communication network includes a communication bus and bus communication controllers respectively arranged at both ends of the communication bus; the abnormal operation of the operating bed includes: abnormal communication bus And/or any one of the bus communication controllers is abnormal;

The control unit is further configured to control the bus communication controller to switch from the currently used communication network to the target communication network;

If the communication between the bus communication controller and the control unit is abnormal before switching, the communication between the bus communication controller and the control unit is normal after switching, and the communication of the target communication network is normal after the switching of the bus communication controller , then keep the bus communication controller connected to the target communication network, detect a fault condition of the bus communication controller, and determine an abnormal cause of the bus communication controller according to the fault condition.