Abstract: The present invention relates to the technical field of mine fire prevention and extinguishing, in particular to a liquid nitrogen direct injection and low-temperature foaming intelligent filling system based on mine fire area characteristics and an application method, comprising a liquid nitrogen storage tank, a liquid nitrogen direct injection system and a low-temperature foaming system, wherein the liquid nitrogen storage tank communicates with a liquid nitrogen pressurizing device through a main pipeline; a temperature control unit is arranged on the main pipeline; and the liquid nitrogen pressurizing device is connected with the liquid nitrogen direct injection system and the low-temperature foaming system, respectively, liquid nitrogen is directly injected into a foam liquid, to prepare a low-temperature foam type fire preventing and extinguishing material by means of forced convection, membrane boiling, explosion boiling and nucleate boiling between the liquid nitrogen and water.

Abstract: The present inventions provides drug-drug conjugates, drug-porphyrin conjugates, nanoparticles of the conjugates, as well as modified nanoparticles having PEGylated exteriors or encapsulated by red blood cell vesicles. The conjugates, nanoparticles and nanocarriers are useful for treating cancers and other diseases, as well as for imaging diseased tissue or organs.

Abstract: The present inventions provides drug-drug conjugates, drug-porphyrin conjugates, nanoparticles of the conjugates, as well as modified nanoparticles having PEGylated exteriors or encapsulated by red blood cell vesicles. The conjugates, nanoparticles and nanocarriers are useful for treating cancers and other diseases, as well as for imaging diseased tissue or organs.

Abstract: The present disclosure discloses a smart speaker wake-up method, a smart speaker wake-up device, a smart speaker and a storage medium, relates to the technical field of speech recognition. The method of the present disclosure is applied to a wireless network including two or more smart speakers, and a specific implementation thereof is: receiving, speech information including a wake-up word; performing a recognition processing to the speech information to obtain identification information corresponding to the wake-up word; and waking up one smart speaker in the wireless network to enter listening state according to the identification information. The present disclosure may be applied to a scenario where multiple smart speakers coexist, so as to quickly select one smart speaker that is most likely to be wakened, avoiding a chaotic speech interaction caused by multiple smart speakers being wakened simultaneously, improving efficiency and quality of speech interaction and achieving better user experience.

Abstract: Embodiments of the present disclosure provide a voice interaction method, device, and a computer readable storage medium. Through a conversion of a terminal device from a near-filed voice interaction mode to a far-filed voice interaction mode, the terminal device is configured to perform the following operations when in the far-filed voice interaction mode: obtaining voice information of a user; obtaining, according to the voice information, target information required by the user from a server; and playing the target information in a voice manner, so that the terminal device can be turned into a smart speaker with a screen in the far-field voice interaction mode, and into a common mobile phone or tablet computer in the near-field voice interaction mode. The terminal device provides the user with a flexible and convenient voice service.

Abstract: The embodiments of the present disclosure provide a service control method, a service control apparatus and a device, the method including: determining an application service in operating state in an electronic device; and transmitting audio data captured by a microphone to the application service and a control service, where the application service is configured to perform multimedia information interaction according to the audio data, and the control service is configured to control the electronic device according to the audio data, thereby improving flexibility in controlling services in the electronic device.

Abstract: The embodiment of the disclosure provides a method for voice controlling, a terminal device, a cloud server and a system. The method includes: receiving voice information that the user performs voice controlling on a terminal device; transmitting voice information to the cloud server, so that the cloud server determines, according to the voice information, a voice control and a control instruction that match the voice information in the current interface, and generates a corresponding voice control instruction; receiving the voice control instruction transmitted by the cloud server; and controlling, according to the voice control instruction, a corresponding voice control of the terminal device to perform an operation. The method of the embodiments of the present disclosure achieves controlling over the controls in the interface through the voice, which deepens the controlling degree of the voice over the terminal device, and improves the user experience.

Abstract: The present disclosure discloses a smart speaker wake-up method, a smart speaker wake-up device, a smart speaker and a storage medium, relates to the technical field of speech recognition. The method of the present disclosure is applied to a wireless network including two or more smart speakers, and a specific implementation thereof is: receiving, speech information including a wake-up word; performing a recognition processing to the speech information to obtain identification information corresponding to the wake-up word; and waking up one smart speaker in the wireless network to enter listening state according to the identification information. The present disclosure may be applied to a scenario where multiple smart speakers coexist, so as to quickly select one smart speaker that is most likely to be wakened, avoiding a chaotic speech interaction caused by multiple smart speakers being wakened simultaneously, improving efficiency and quality of speech interaction and achieving better user experience.

Abstract: The present inventions provides drug-drug conjugates, drug-porphyrin conjugates, nanoparticles of the conjugates, as well as modified nanoparticles having PEGylated exteriors or encapsulated by red blood cell vesicles. The conjugates, nanoparticles and nanocarriers are useful for treating cancers and other diseases, as well as for imaging diseased tissue or organs.

Abstract: A method, device and apparatus for recognizing a voice signal, and a storage medium are provided. The method includes: collecting a voice signal; extracting the voiceprint feature of the voice signal; comparing the voiceprint feature with a pre-stored reference voiceprint feature; and recognizing a content of the voice signal with a voice recognition model, in response to a consistence of the voiceprint feature with the pre-stored reference voiceprint feature. Embodiments of the present application can improve the accuracy of recognizing voice signals.

Abstract: A method, apparatus, and device for waking up a voice interaction device, and a storage medium are provided. The method includes: acquiring a voice signal; extracting a first voiceprint characteristic of the voice signal; comparing the first voiceprint characteristic with a pre-stored reference voiceprint characteristic to obtain a similarity between the first voiceprint characteristic and the pre-stored reference voiceprint characteristic; comparing the similarity with a preset threshold; and determining that the first voiceprint characteristic is consistent with the reference voiceprint characteristic in response to the similarity larger than the preset threshold; and determining a wake-up word included in content of the voice signal by using a wake-up word recognition model and waking up the voice interaction device. In the embodiments, the ratio for falsely waking up a voice interactive device is reduced.

Abstract: The embodiments of the present disclosure provide a service control method, a service control apparatus and a device, the method including: determining an application service in operating state in an electronic device; and transmitting audio data captured by a microphone to the application service and a control service, where the application service is configured to perform multimedia information interaction according to the audio data, and the control service is configured to control the electronic device according to the audio data, thereby improving flexibility in controlling services in the electronic device.

Abstract: A method and apparatus for filtering out a voice instruction are provided. The method includes: receiving a conversation voice in a conversation process; determining whether control instruction information is included in the conversation voice; and filtering out the conversation voice with the control instruction information and prohibiting from sending the conversation voice to the opposite equipment of the conversation process. The apparatus includes a receiving module configured to receive a conversation voice in a conversation process, a determination module configured to determine whether control instruction information is included in the conversation voice, and a conversation module configured to filter out the conversation voice and prohibit from sending the conversation voice to an opposite equipment of the conversation process, in response to a determination of control instruction information in the conversation voice.

Abstract: Embodiments of the present disclosure provide a voice interaction method, device, and a computer readable storage medium. Through a conversion of a terminal device from a near-filed voice interaction mode to a far-filed voice interaction mode, the terminal device is configured to perform the following operations when in the far-filed voice interaction mode: obtaining voice information of a user; obtaining, according to the voice information, target information required by the user from a server; and playing the target information in a voice manner, so that the terminal device can be turned into a smart speaker with a screen in the far-field voice interaction mode, and into a common mobile phone or tablet computer in the near-field voice interaction mode. The terminal device provides the user with a flexible and convenient voice service.

Abstract: The embodiment of the disclosure provides a method for voice controlling, a terminal device, a cloud server and a system. The method includes: receiving voice information that the user performs voice controlling on a terminal device; transmitting voice information to the cloud server, so that the cloud server determines, according to the voice information, a voice control and a control instruction that match the voice information in the current interface, and generates a corresponding voice control instruction; receiving the voice control instruction transmitted by the cloud server; and controlling, according to the voice control instruction, a corresponding voice control of the terminal device to perform an operation. The method of the embodiments of the present disclosure achieves controlling over the controls in the interface through the voice, which deepens the controlling degree of the voice over the terminal device, and improves the user experience.