Abstract: A battery assembly is provided by the present disclosure. The battery assembly includes a case body, a battery cell module, and a first flame retardant plate. The battery cell module includes a plurality of sub modules. Each of the sub modules includes a plurality of battery cells. An end of each of the battery cells is provided with a pressure relief valve. The first flame retardant plate is disposed between the battery cell module and the bottom guard plate. The first flame retardant plate is provided with a pressure relief hole. A side of the first flame retardant plate adjacent to the battery cell module is adjacent to the battery cells, and a side of the first flame retardant plate adjacent to the bottom guard plate and the bottom guard plate define a pressure relief cavity.

Abstract: Provided are a battery module and an automobile. The battery module includes a box body, cells, a box cover and a supporting member. The box body is concavely provided with an accommodation groove. Multiple cells are disposed side by side in a first direction to form a cell group, and the cell group is disposed within the accommodation groove. The box cover is arranged to block a groove opening of the accommodation groove. The supporting member is disposed between the box cover and the cell group, a pressure relief groove is disposed on the supporting member, the supporting member includes a substrate and a first reinforcing portion, the first reinforcing portion abuts against the box cover, at least part of the pressure relief groove is disposed within the first reinforcing portion, and pressure relief valves of all cells communicate with the pressure relief groove.

Abstract: A display apparatus is disclosed in the embodiments of the present disclosure. The display apparatus includes a display structure, a sound emitting substrate, and a plurality of electromagnetic exciters; wherein the display structure is configured to receive and display optical signals; the sound emitting substrate is attached to the display structure and is divided into a plurality of regions by a plurality of isolation zones, at least some of the plurality of regions are attached to at least one of the plurality of electromagnetic exciters; and the plurality of electromagnetic exciters are configured to generate bending waves at an area where the plurality of electromagnetic exciters are attached to the sound emitting substrate.

Abstract: Device to device (D2D) communication control is provided. A method comprises: allocating a pilot channel resource for at least one directional pilot signal associated with directional D2D communication; and sending information associated with the pilot channel resource. A respective pilot channel resource for a direction pilot signal can be allocated for each direction D2D communication, thereby providing a basis for better control of the D2D communication.

Abstract: Provided are a battery pack and a vehicle. The battery pack includes at least two layers of battery modules which includes cells and a tray for carrying the cells. The trays of two adjacent layers of battery modules have sides, on which the cells are not arranged, arranged to face each other and connected to each other in a sealed manner. A space between the two trays defines a pressure relief chamber after being sealed. The pressure relief chamber is in communication with a pressure relief opening, the tray is provided with through holes, and one side, on which the cells are arranged, of the tray is in communication with the pressure relief chamber through the through holes. The present application solves the issues of difficult sealing and difficult design of pressure relief channel between multiple layers of battery modules in the related art and improves safety reliability.

Abstract: A strain sensor is disclosed. The strain sensor includes: a base (10) provided with a mounting recess (11); a mounting structure (20) disposed on the base (10) and located in the mounting recess (11), a preset gap (21) being formed between the mounting structure (20) and an inner surface of the mounting recess (11); a bearing structure (30) mounted in the mounting recess (11) and located outside the preset gap (21); and a wire set (40), a side of the wire set (40) being disposed on the bearing structure (30), and another side of the wire set (40) being arranged on the mounting structure (20). A robot including the strain sensor is also disclosed.

Abstract: A display apparatus is disclosed in the embodiments of the present disclosure. The display apparatus includes a display structure, a sound emitting substrate, and a plurality of electromagnetic exciters; wherein the display structure is configured to receive and display optical signals; the sound emitting substrate is attached to the display structure and is divided into a plurality of regions by a plurality of isolation zones, at least some of the plurality of regions are attached to at least one of the plurality of electromagnetic exciters; and the plurality of electromagnetic exciters are configured to generate bending waves at an area where the plurality of electromagnetic exciters are attached to the sound emitting substrate.

Abstract: A display apparatus and a method for processing audio are provided, the display apparatus includes a circuit board provided with a hybrid circuit, a filter circuit and a speaker; the hybrid circuit is configured to receive an original audio signal and superpose a first sub-signal of the original audio signal on a second sub-signal of the original audio signal to obtain a hybrid audio signal; the first sub-signal includes at least one channel of audio signal, the second sub-signal includes at least two channels of audio signal; the filter circuit is configured to filter the hybrid audio signal according to a frequency characteristic of the first sub-signal and the second sub-signal to obtain a restored original audio signal; and the speaker, connected with the filter circuit, is configured to output the restored original audio signal.

Abstract: Embodiments of the present application provide a wireless energy transmission method and device. A method includes: generating a visible light communication signal according to wireless energy transmission intensity between a wireless energy sending device and a wireless energy receiving device; and sending the visible light communication signal. A signal can be transmitted (or received) related to wireless energy transmission intensity through visible light communication, to enable a user to easily obtain information about wireless energy transmission intensity.

Abstract: A display device and a speaker assembly are provided, the speaker assembly is located in a first rear housing or a second rear housing and includes a shell, a first speaker unit and a second speaker unit, the shell has a cavity, the cavity has a baffle disposed therein, the cavity is divided into a first cavity and a second cavity by the baffle, the first speaker unit and the second speaker unit are respectively located in the first cavity and the second cavity, and the speaker has a relatively low degree of distortion and a relatively high reliability.

Abstract: Device to device (D2D) communication control is provided. A method comprises: allocating a pilot channel resource for at least one directional pilot signal associated with directional D2D communication; and sending information associated with the pilot channel resource. A respective pilot channel resource for a direction pilot signal can be allocated for each direction D2D communication, thereby providing a basis for better control of the D2D communication.

Abstract: Device to device (D2D) communication control is provided. A method comprises: allocating a pilot channel resource for at least one directional pilot signal associated with directional D2D communication; and sending information associated with the pilot channel resource. A respective pilot channel resource for a direction pilot signal can be allocated for each direction D2D communication, thereby providing a basis for better control of the D2D communication.

Abstract: A display device and a speaker assembly are provided, the speaker assembly is located in a first rear housing or a second rear housing and includes a shell, a first speaker unit and a second speaker unit, the shell has a cavity, the cavity has a baffle disposed therein, the cavity is divided into a first cavity and a second cavity by the baffle, the first speaker unit and the second speaker unit are respectively located in the first cavity and the second cavity, and the speaker has a relatively low degree of distortion and a relatively high reliability.

Abstract: The embodiments of this application disclose an auxiliary access method and apparatus thereof. The auxiliary access method comprises: sending at least two access-associated signals by using at least two non-coherent antennas; and receiving at least one access request. According to the method and the apparatus in the embodiments of this application, a probability of a collision between access terminals can be reduced and an access success rate of an access terminal can be improved.

Abstract: A display apparatus and a method for processing audio are provided, the display apparatus includes a circuit board provided with a hybrid circuit, a filter circuit and a speaker; the hybrid circuit is configured to receive an original audio signal and superpose a first sub-signal of the original audio signal on a second sub-signal of the original audio signal to obtain a hybrid audio signal; the first sub-signal includes at least one channel of audio signal, the second sub-signal includes at least two channels of audio signal; the filter circuit is configured to filter the hybrid audio signal according to a frequency characteristic of the first sub-signal and the second sub-signal to obtain a restored original audio signal; and the speaker, connected with the filter circuit, is configured to output the restored original audio signal.

Abstract: Disclosed is an angle sensor, including a gear structure (1), an eddy current probe (2) and a processing unit (3), wherein the gear structure (1) is a gear mounted and fixed on the outer circumference of a rotating shaft or a gear formed by machining on the outer circumference of the rotating shaft, and a positioning structure (P) for feature angle recognition is provided on an outer circumferential side of the gear structure (1); the eddy current probe (2) is positioned at the outer circumferential side of the gear structure (1), and the eddy current probe (2) faces a gear tooth and a tooth groove of the gear; and the processing unit (3) is connected to the eddy current probe (2) and is used for processing signals and outputting an angle measurement signal. Also disclosed is an angle measurement method.

Abstract: The embodiments of this application disclose an auxiliary access method and apparatus thereof. The auxiliary access method comprises: sending at least two access-associated signals by using at least two non-coherent antennas; and receiving at least one access request. According to the method and the apparatus in the embodiments of this application, a probability of a collision between access terminals can be reduced and an access success rate of an access terminal can be improved.

Abstract: The present application discloses an information observation method and an information observation apparatus, and relates to the field of multimedia information processing technologies. The method comprises: detecting a position of a sightline focusing point of an observer; in response to that it is detected that the sightline focusing point of the observer moves away from an observed object, judging whether the observer has observed all important information on the observed object; and in response to that it is judged that the observer has not observed all important information on the observed object, reminding the observer. For the method and the apparatus in embodiments of the present application, from the perspective of an actual observation behavior of an observer, a position of a sightline focusing point of the observer is detected to determine an observation behavior of the observer for important information, so as to radically prevent missing of important information.

Abstract: Data, transmission comprises when sending data to a receiver through a channel, receiving, through the channel, at least one reference signal sent by the receiver; and resending the data according to the at least one reference signal. The present application further discloses other methods and apparatuses for transmitting data. Using the various embodiments, an issue that quality of service (QoS) cannot be ensured due to a lag of a reference signal in conventional data transmission is avoided, and the quality of data transmission can be improved.

Abstract: Embodiments of the present application provide a call processing method and an apparatus thereof. The method includes: receiving information associated with calling at least one slave device, where the information associated with calling at least one slave device is used to request to wake up the at least one slave device from a sleep state to an active state; and sending an excitation signal to the at least one slave device, where the excitation signal is used to request to wake up the at least one slave device. In the method and apparatus in the embodiments of the present application, a slave device is rendered in a sleep state, and the slave device is activated when the slave device is being called or is going to be called, which can save power consumption caused by unnecessary listening by the slave device.