TW201409239A - X73-PHD system and method using the same thereof - Google Patents

Abstract

An x73-PHD system and an automatic firmware update method using the same thereof are disclosed. The x73-PHD system comprises an x73-PHD adaptor and an x73-PHD gateway. The x73-PHD gateway communicates with a physiology monitor via the x73-PHD adaptor. The method comprises following steps. A matching serial number corresponding to the physiology monitor is got. It is determined whether a current firmware of the x73-PHD adaptor needs to update according to the matching serial number to generate a response result. The current firmware is updated to the updating firmware corresponding to the matching serial number when the response result indicates that the current firmware needs to update. A communication link is built according to the updating firmware to upload physiology information sensed by the physiology monitor.

Description

x73-PHD system and its firmware automatic updating method

The disclosure relates to an automatic update method for an x73-PHD system and its firmware.

With advances in medical technology, patients can perform point-of-care testing at home, measure physiological parameters, and store the results for reference by caregivers. In view of the wide variety of physiological monitors, different physiological monitors have different transmission interfaces and user interfaces. For example, the aforementioned transmission interface includes RS232, USB, Bluetooth, ZigBee, and the like.

In 2006, CEN, ISO and IEEE merged to propose a standard agreement on medical device communication - International Medical Communication Standard (x73-PHD). This standard provides an open communication system and allows software and hardware to communicate meaningfully across multiple brands of medical instruments. Through the international medical communication standard (x73-PHD), not only can the information obtained by various medical instruments be converted into a standard format for convenient storage and use, but also the instrument and the instrument can communicate with each other, which can reduce the operation of personnel and reduce the occurrence of errors. The introduction of x73-PHD in home care is necessary for long-term system planning and implementation.

However, physiological monitors need to increase the international medical communication standard (x73-PHD) communication function, and both hardware and software have to be redesigned, which will increase the cost of software, increase the cost of hardware, and make the design of physiological monitors more complicated. Therefore, how to solve the above problems and make international medical communication standards more popular in various physiological monitors has become a very important issue.

The disclosure relates to an automatic update method for an x73-PHD system and its firmware.

According to the disclosure, a method for automatically updating the firmware of the x73-PHD system is proposed. The x73-PHD system includes an x73-PHD converter and an x73-PHD gateway. The x73-PHD gateway communicates with the physiological monitor through the x73-PHD converter. The firmware update method includes the following steps. A pairing number corresponding to the physiological monitor is obtained. According to the pairing number, it is judged whether the current firmware of the x73-PHD converter needs to be updated to generate a response result. When the response result is that the firmware needs to be updated, the current firmware is updated to the updated firmware corresponding to the pairing number. Establish a communication connection according to the updated firmware to upload the physiological information sensed by the physiological monitor.

According to the present disclosure, an x73-PHD system is proposed. The x73-PHD system includes an x73-PHD converter and an x73-PHD gateway. The x73-PHD converter includes a flash memory, a first communication interface, and a first processor. Flash memory stores current firmware. The first processor is coupled to the first communication interface and the flash memory, and obtains a pairing number corresponding to the physiological monitor. The first processor receives the response result. The x73-PHD gateway includes a second communication interface and a second processor. The second processor is coupled to the second communication interface and receives the pairing number. The second processor determines whether the firmware needs to be updated according to the pairing number to generate a response result. When the response result is that the firmware needs to be updated, the first processor updates the current firmware to the updated firmware corresponding to the pairing number. And establishing a communication connection between the first communication interface and the second communication interface according to the updated firmware to upload the physiological information sensed by the physiological monitor.

In order to better understand the above and other aspects of the disclosure, the following The specific embodiments, together with the drawings, are described in detail as follows:

First embodiment

Please refer to FIG. 1 , FIG. 2 and FIG. 3 simultaneously. FIG. 1 is a block diagram of the x73-PHD system and the physiological monitor according to the first embodiment, and FIG. 2 is a first diagram. A flowchart of the method for automatically updating the firmware of the embodiment, and FIG. 3 is a timing diagram of signals between the x73-PHD converter and the x73-PHD gateway. The x73-PHD system 1 includes an x73-PHD converter 11 and an x73-PHD gateway 12, and the x73-PHD gateway 12 communicates with the physiological monitor 2 via an x73-PHD converter 11. The x73-PHD converter 11 includes a flash memory 111, a first communication interface 112, and a first processor 113. The first processor 113 is coupled to the flash memory 111 and the first communication interface 112. The flash memory 111 stores the boot loader (Boot Loader) and the current firmware FW1. The x73-PHD gateway 12 includes a memory 121, a second communication interface 122, and a second processor 123. The second processor 123 is coupled to the second communication interface 122 and the memory 121. The memory 121 is used to store the updated firmware FW2. The first communication interface 112 and the second communication interface 122 are, for example, a Bluetooth module, a ZigBee module, or a USB module. In addition, the first communication interface 112 further includes an RS232 module for communicating the physiological monitor 2 having an RS232 connection port.

The firmware automatic update method mainly includes the following steps. As shown in step S1, the first processor 113 of the x73-PHD converter 11 obtains the pairing number corresponding to the physiological monitor 2. The first processor 113 of the x73-PHD converter 11 first obtains knowledge from the physiological monitor in a wired manner or in a wireless manner. Do not information, and then match the matching serial number according to the identification information. The identification information is, for example, a Media Access Control Address (MAC), a Product ID, or a Protocol ID.

As shown in step S2, the second processor 123 of the x73-PHD gateway 12 determines whether to update the current firmware FW1 of the x73-PHD converter 11 based on the pairing number to generate a response result. Further, the first processor 113 of the x73-PHD converter 11 issues an update request message Req and a pairing number to the x73-PHD gateway 12, and the update request information Req includes the x73-PHD converter 11 requesting the x73-PHD gateway. The device 12 performs a command code for updating the firmware. After receiving the update request information Req, the second processor 123 of the x73-PHD gateway 12 generates a response result Rsp according to the pairing number. In another embodiment, the update request information Req may further include a firmware version of the current firmware FW1. The second processor 123 of the x73-PHD gateway 12 can further determine whether to update the current firmware FW1 according to the firmware version of the current firmware FW1.

As shown in step S3, when the response result is that the firmware needs to be updated, the first processor 113 of the x73-PHD converter 11 updates the current firmware in the flash memory 111 to the updated firmware corresponding to the pairing number. Body FW2. Step S3 further includes step S31 and step S32. As shown in step S31, the first processor 113 of the x73-PHD converter 11 downloads the updated firmware FW2. As shown in step S32, the first processor 113 of the x73-PHD converter 11 burns the flash memory 111 of the firmware FW2 to the x73-PHD converter.

In addition, in another embodiment, the foregoing response result may further include updating a check Sum and a firmware size of the firmware FW2. The first processor 113 downloads the firmware FW2 After the completion, check whether the firmware FW2 is correct according to the sum check code and the firmware size.

As shown in step S4, the first processor 113 of the x73-PHD converter 11 establishes a communication connection between the first communication interface 112 and the second communication interface 122 according to the updated firmware to upload the physiological monitor 2 to sense Physiological information. Conversely, when the response result Rsp is that the firmware FW1 is not updated, the first processor 113 of the x73-PHD converter 11 establishes communication between the first communication interface 112 and the second communication interface 122 according to the current firmware FW1. Connected.

Please refer to FIG. 1 , FIG. 3 and FIG. 4 at the same time. FIG. 4 is a detailed flow chart of the foregoing step S31. As shown in step S311, when the response result Rsp is that the current firmware needs to be updated, the first processor 113 of the x73-PHD converter 11 outputs a start message ST to the x73-PHD gateway 12 in response to the response result Rsp. As shown in step S312, the second processor 123 of the x73-PHD gateway 12 starts downloading the update firmware FW2 to the x73-PHD converter 11 in response to the start of the download message ST. As shown in step S313, the second processor 123 of the x73-PHD gateway 12 outputs the download completion message F to the x73-PHD converter 11 after the update firmware FW2 is downloaded. As shown in step S314, the first processor 113 of the x73-PHD converter 11 outputs the end of the download message E to the x73-PHD gateway 12 in response to the download completion message F.

x73-PHD converter action flow

Please refer to FIG. 1 , FIG. 3 and FIG. 5 simultaneously. FIG. 5 is a flow chart showing the operation of the x73-PHD converter according to the first embodiment. Further, the operation flow of the x73-PHD converter 11 includes step S51~ S58. As shown in step S51, the x73-PHD converter 11 is powered on and performs a Power-On Self Test (POST). In step S52, the x73-PHD converter 11 obtains the pairing number corresponding to the physiological monitor 2. In step 53, it is determined according to the pairing number whether the current firmware needs to be updated. If the current firmware is not required to be updated, the communication connection is established as shown in step S54. Conversely, if the firmware is to be updated, the x73-PHD converter 11 issues an update request message Req to the x73-PHD gateway 12 as shown in step S55. The x73-PHD gateway 12 responds to the update request information Req to generate a response result Rsp. As shown in step S56, the x73-PHD converter 11 determines whether there is a reply result Rsp or a new firmware FW2. If there is no reply result Rsp or updated firmware FW2, as shown in step S54, a communication connection is established. Conversely, if there is a reply result Rsp or a newer firmware FW2, as shown in step S57, the x73-PHD converter 11 updates the current firmware FW1 to the updated firmware FW2. As shown in step 58, the x73-PHD converter 11 is turned back on. After the x73-PHD converter 11 is restarted, the foregoing steps S51 to S54 are repeatedly executed, and the communication connection is established according to the updated firmware FW2 in step S54.

Firmware update state machine for x73-PHD converter

Please refer to FIG. 3 and FIG. 6 at the same time. FIG. 6 is a schematic diagram of the firmware update state machine of the x73-PHD converter. The state machine of the x73-PHD converter 11 includes six states. The x73-PHD converter 11 enters the initial (Idle) state 61, and after the x73-PHD converter 11 issues the update request information Req, it enters the wait response result state 62. In the wait response result state 62, if the response result Rsp is x73-PHD converter 11 does not need to update the firmware, it returns to the initial (Idle) state 61. Conversely, if the response result Rsp is The x73-PHD converter 11 needs to update the firmware, and then enters the download firmware state 63. At the beginning of downloading the firmware state 63, the x73-PHD converter 11 outputs the start download message ST to the x73-PHD gateway 12, and then actively enters the receive firmware state 64. In the receive firmware state 64, the x73-PHD converter 11 receives the updated firmware FW2 from the x73-PHD gateway 12. The x73-PHD gateway 12 issues a download completion message F after the update firmware FW2 is transmitted. When the x73-PHD converter 11 receives the download completion message F, it enters the completion firmware download state 65. In the completion firmware download state 65, the x73-PHD converter 11 prepares to end the download process of the firmware FW2 in accordance with the download completion message F. When the x73-PHD converter 11 responds to the download completion message F and outputs the end of the download message E to the x73-PHD gateway 12, it enters the end state.

Firmware update state machine for x73-PHD gateway

Please refer to FIG. 3 and FIG. 7 at the same time. FIG. 7 is a schematic diagram showing the state machine of the x73-PHD converter. The state machine of the x73-PHD gateway 12 includes six states. The x73-PHD gateway 12 enters the initial (Idle) state 71, and upon receiving the update request information Req, the x73-PHD gateway 12 enters the check current firmware state 72. In checking the current firmware state 72, the x73-PHD gateway 12 determines whether the current firmware of the x73-PHD converter 11 needs to be updated based on the pairing number and the firmware version. If the x73-PHD converter 11 does not need to update the firmware, it returns to the initial (Idle) state 71. Conversely, if the x73-PHD converter 11 needs to update the firmware, it proceeds to start downloading the firmware state 73. At the beginning of downloading the firmware state 73, the x73-PHD gateway 12 receives the start download message ST and enters the transfer firmware state 74. Transfer firmware In state 74, the x73-PHD gateway 12 transmits the updated firmware FW2 to x73-PHD converter 11. When the x73-PHD gateway 12 is transferred to the update firmware FW2, the download completion message F is issued and the completion firmware download state 75 is entered. In the completion firmware download state 75, when the x73-PHD gateway 12 receives the end download message E, it enters the end state 76.

Second embodiment

Please refer to FIG. 8. FIG. 8 is a block diagram showing an x73-PHD converter according to the second embodiment. Second Embodiment The first embodiment is mainly different in that the x73-PHD converter 81 further includes a first extended flash memory 114 and a second extended flash memory 115. In order to avoid the failure of the firmware update to cause the x73-PHD converter to malfunction, the x73-PHD converter 81 adopts the dual image design. During the firmware update process, the update firmware FW2 is first downloaded and burned to the second extended flash memory 115 for use as the next reboot. Before the firmware FW2 is loaded into the flash memory 111 to be booted up, the firmware FW1 is currently present in the first extended memory 114 as a backup. In this way, when the firmware FW2 is updated, the function of the firmware backup can be achieved by reloading the current firmware FW1 to the flash memory 111. When the update firmware FW2 is normal, the first processor 123 executes the update firmware FW2 after executing the boot loader BL.

The design of the dual image can be implemented by a boot loader BL, a Current Runtime image (CRI), a Next Runtime image (NRI), and a Change Image State (CIS). The CRI value represents the currently executing firmware start address (Start Address, SA), and the NRI value represents the preliminary update. The starting address of the firmware. After the firmware is downloaded, the first processor 113 extracts the NRI value as the reference position for updating the firmware FW2, and sets the CIS value to true. When the x73-PHD converter 81 is ready to be rebooted the next time, the boot loader BL loads the update firmware FW2 from the NRI based on the CIS value.

When the x73-PHD converter 81 is turned back on successfully, the first processor 113 determines whether the CIS value is true. If the CIS value is true, set the CRI value to the NRI value and reset the CIS value to false. Conversely, if the CIS value is false, no action is taken.

In summary, although the disclosure has been disclosed in the above embodiments, it is not intended to limit the disclosure. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the disclosure. Therefore, the scope of protection of this disclosure is subject to the definition of the scope of the appended claims.

1‧‧‧x73-PHD system

2‧‧‧ Physiological monitor

11‧‧‧x73-PHD converter

12‧‧‧x73-PHD gateway

61, 71‧‧‧ initial state

62‧‧‧Awaiting response status

63, 73‧‧‧Start downloading firmware status

64‧‧‧ Receiving firmware status

65, 75‧‧‧Complete firmware download status

66, 76‧‧‧ End status

72‧‧‧Check current firmware status

74‧‧‧Transfer firmware status

111‧‧‧Flash memory

112‧‧‧First Communication Interface

113‧‧‧First processor

114‧‧‧First extended flash memory

115‧‧‧Second extended flash memory

121‧‧‧ memory

122‧‧‧Second communication interface

123‧‧‧second processor

BL‧‧‧ boot loader

S1~S5, S31~S32, S311~S314, S51~S58‧‧‧ steps

FW1‧‧‧ current firmware

FW2‧‧‧ updated firmware

Req‧‧‧Update Request Information

Rsp‧‧‧Responding results

ST‧‧‧Download message

E‧‧‧End download message

F‧‧‧Download completion message

Figure 1 is a block diagram showing the x73-PHD system and physiological monitor in accordance with the first embodiment.

FIG. 2 is a flow chart showing a method for automatically updating a firmware according to the first embodiment.

Figure 3 shows the timing diagram of the signal between the x73-PHD converter and the x73-PHD gateway.

Figure 4 is a flow chart showing the details of the foregoing step S31.

Fig. 5 is a flow chart showing the operation of the x73-PHD converter in accordance with the first embodiment.

Figure 6 is a schematic diagram showing the firmware update state machine of the x73-PHD converter.

Figure 7 is a schematic diagram showing the firmware update state machine of the x73-PHD converter.

Figure 8 is a block diagram showing an x73-PHD converter in accordance with a second embodiment.

S1~S5‧‧‧Steps

Claims (21)

A method for automatically updating a firmware of an x73-PHD system, the x73-PHD system comprising an x73-PHD converter and an x73-PHD gateway, the x73-PHD gateway being coupled with the x73-PHD converter Communicating with a physiological monitor, the method for automatically updating the firmware includes: obtaining a pairing number corresponding to the physiological monitor; determining, according to the pairing number, whether to update one of the current firmware of the x73-PHD converter to generate a response result When the response result is that the current firmware needs to be updated, the current firmware is updated to update the firmware corresponding to the pairing number; and a communication connection is established according to the updated firmware to upload the physiological monitor. Physiological information sensed. The firmware automatic updating method according to claim 1, wherein the x73-PHD converter first obtains an identification information from the physiological monitor, and then matches the pairing number according to the identification information. The method for automatically updating the firmware according to claim 1, further comprising: sending an update request message and the pairing number to the x73-PHD gateway; wherein the x73-PHD gateway receives the update request After the information, the response result is generated according to the pairing number. The method for automatically updating a firmware according to claim 1, wherein the step of updating the current firmware to the updated firmware corresponding to the pairing number comprises: when the response result is required for the current firmware When updating, download the update tough And burning the updated firmware to one of the x73-PHD converters for flash memory. The firmware automatic updating method according to claim 1, wherein the x73-PHD converter further includes a first extended flash memory and a second extended flash memory, and the updated tough system is downloaded first. The second extended flash memory is burned to be used as the next power-on, and the first extended memory is placed as a backup by the current tough system. The method for automatically updating the firmware as described in claim 1, wherein the downloading step comprises: responding to the output of the response and outputting the message to the x73-PHD gateway; and starting to download the message to start downloading the update To the x73-PHD converter; after the update firmware is downloaded, output a download completion message to the x73-PHD converter; and return the download completion message output to end the download message to the x73-PHD gateway . The firmware automatic updating method according to claim 1, wherein the response result includes a checksum (Sum) and a firmware size (Firmware Size) of the updated firmware. The firmware automatic updating method of claim 7, further comprising: after the downloading of the updated firmware, checking the updated firmware according to the sum check code and the firmware size. The firmware automatic update method of claim 1, wherein the update request information further includes a firmware version of the current firmware. The method for automatically updating the firmware as described in claim 1 further includes: when the response result is that the current firmware does not need to be updated, establishing a communication connection according to the current firmware. An x73-PHD system, comprising: an x73-PHD converter, comprising: a flash memory for storing a current firmware; a first communication interface; and a first processor coupled to the first a communication interface and the flash memory, and obtaining a pairing number corresponding to a physiological monitor, the first processor receiving a response result; and an x73-PHD gateway comprising: a memory for storing a second firmware interface; and a second processor coupled to the second communication interface and the memory, and receiving the pairing number, the second processor determining the current toughness according to the pairing number Whether the body needs to be updated to generate the response result, and when the response result is that the current firmware needs to be updated, the first processor updates the current firmware to the updated firmware corresponding to the pairing number, and according to the The update firmware establishes a communication connection between the first communication interface and the second communication interface to upload the physiological information sensed by the physiological monitor. The x73-PHD system of claim 11, wherein the first processor first obtains an identification information from the physiological monitor, and then The pairing number is matched according to the identification information. The x73-PHD system of claim 11, wherein the first processor sends an update request message and the pairing number to the x73-PHD gateway, and the x73-PHD gateway receives the update request. After the information, the response result is generated according to the pairing number. The x73-PHD system of claim 11, wherein when the response result is that the current firmware needs to be updated, the first processor downloads the updated firmware and burns the updated firmware to the fast Flash memory. The x73-PHD system of claim 11, wherein the x73-PHD converter further comprises a first extended flash memory and a second extended flash memory, and the updated tough system is downloaded and burned. Up to the second extended flash memory, and the current tough system is present in the first extended memory as a backup. The x73-PHD system of claim 11, wherein the first processor responds to the result output and starts downloading the message to the x73-PHD gateway, and the second processor should start downloading the message. Downloading the updated firmware to the x73-PHD converter, after the update firmware is downloaded, the second processor outputs a download completion message to the x73-PHD converter, and the first processor should download the completion message. Output a download message to the x73-PHD gateway. The x73-PHD system of claim 11, wherein the response result includes a checksum (Sum) and a firmware size of the updated firmware. The x73-PHD system of claim 17, wherein the first processor is based on the sum after the update firmware is downloaded. Check the code and the firmware size to check the updated firmware. The x73-PHD system of claim 11, wherein the update request information further includes a firmware version of the current firmware. The x73-PHD system of claim 11, wherein when the response result is that the current firmware does not need to be updated, the first processor establishes a communication connection according to the current firmware. For example, in the x73-PHD system described in claim 11, wherein the first communication interface is a Bluetooth module, a ZigBee module, a USB module or an RS232 module, and the second communication interface is a Bluetooth module. Group, ZigBee module or USB module.