Please select the most similar patent number from A, B, C and D. Which number is?
A monitor and a control method therefor, collecting and receiving devices (10, 20) and a communication method therefor. Configuration data is transmitted between the collecting device (10) and the receiving device (20) by using a first wireless communication technology. The collecting device (10) determines first pairing information and a communication channel according to the configuration data, and then the receiving device (20) transmits second pairing information on the communication channel by using a second wireless communication technology. Only when the first pairing information matches the second pairing information, the collecting device (10) is allowed to send the collected physiological signal or physiological information generated according to the physiological signal to the receiving device (20).
A: A fingerprint lock, a fingerprint processing apparatus, and a fingerprint lock system. The fingerprint lock comprises: a first wireless communication module (10) for receiving a fingerprint recognition result; a mechanical linkage device (13) being unlocked or locked; a driving device (12) for driving the mechanical linkage device (13) to be unlocked or locked; and a processing device (11) for controlling, according to the fingerprint recognition result, the driving device (12) to drive the mechanical linkage device (13) to be unlocked or locked. The fingerprint processing apparatus comprises: a fingerprint acquisition device (20) for acquiring a fingerprint of a user; a second wireless communication module (22); and a fingerprint recognition device (21) for recognizing the acquired fingerprint of the user and sending the recognition result by means of the second wireless communication module (22). By separating the fingerprint acquisition device (20) and the fingerprint recognition device (21) from a conventional fingerprint lock, a fingerprint lock product is miniaturized, thereby expanding the application range of the fingerprint lock product.
B: A street-lamp Internet of Things-based system and method for intelligently monitoring a manhole cover. The system comprises: a street lamp (10), a manhole cover (20) and a server (30). At least the following components are mounted on the street lamp (10): a centralized controller and a first wireless communications device. The manhole cover (20) comprises a second wireless communications device and a monitoring device; a communications transmission channel is established between the first wireless communications device and the second wireless communications device; when the monitoring device determines that the position of the manhole cover (20) deviates from a preset position, and when the distance from the preset position is greater than or equal to a preset distance threshold, a first alarm message is sent to the centralized controller by means of the communications transmission channel that is established between the first wireless communications device and the second wireless communications device; the centralized controller forwarding first alarm information to the server (30); after receiving the first alarm information that is sent by the centralized controller, the server (30) sending a notification message to a relevant department such that the relevant department performs corresponding processing.
C: A remote control method, a remote controller (400) and a remote control system, wherein the remote control method comprises: acquiring a remote control instruction for a user to operate a remote controller (400) (101); querying whether there is pairing information, in the remote controller (400), between same and a target device, wherein the pairing information represents that communication between the remote controller (400) and the target device can be established in a first wireless communication mode (102); where there is pairing information, sending a connection request to the target device in the first wireless communication mode, so as to establish a first wireless connection with the target device based on the first wireless communication mode (103); where the first communication connection is established successfully, sending, to the target device, a remote control signal corresponding to the remote instruction and being based on the first wireless communication mode (104); and where there is no pairing information or the first communication connection is not established successfully, sending, to the target device, a remote control signal corresponding to the remote instruction and being based on a second wireless communication mode (105).
D: A wireless medical device (01), a central monitoring station (04), and a wireless medical monitoring system and method. The system comprises a wireless medical device (01), a wireless access point (02), a wireless control unit (03) and a central monitoring station (04), wherein the wireless medical device (01) and the central monitoring station (04) access a wireless network by means of the wireless access point (02) and communicate with each other by means of the wireless network; the wireless medical device (01) collects and processes at least one physiological parameter signal of a patient to obtain physiological data of the patient, and can also monitor network state information of the wireless access point (02) where same is located at the same time to obtain first network state information; the wireless medical device (01) sends the physiological data and the first network state information to the central monitoring station (04) by means of the wireless network; and the central monitoring station (04) at least displays the physiological data and stores the first network state information.
Answer: D