Search

CN-121987196-A - Monitoring device based on optical signal

CN121987196ACN 121987196 ACN121987196 ACN 121987196ACN-121987196-A

Abstract

A monitoring device based on optical signals comprises a shell component, a first substrate and an optical sensor. The housing assembly comprises a first housing and a second housing fixed to the first housing, and the first housing and the second housing define a first accommodating space. The first substrate is arranged in the first accommodating space and comprises a fixing surface. The optical sensor is arranged between the first substrate and the first shell and comprises a substrate and an optical sensor body. The substrate is fixed on the fixing surface, and the optical sensor body is installed on the substrate and provided with a sensing surface. The first shell comprises a shell body and a shielding structure, the shielding part extends from the surface of the shell body towards the first substrate to form and enclose the periphery of the optical sensor, and then a multi-stage shielding structure formed by at least a first gap, a second gap and a third gap is formed together, and the multi-stage shielding structure is communicated with the sensing surface of the optical sensor. The application can reduce the interference of light rays on the detection result.

Inventors

  • DU BING
  • LI LEI

Assignees

  • 深圳华大智造科技股份有限公司

Dates

Publication Date
20260508
Application Date
20241107

Claims (10)

  1. 1. An optical signal-based monitoring device, comprising: A first housing assembly including a first housing and a second housing secured to the first housing, the first housing and the second housing defining a first receiving space; a first substrate arranged in the first accommodation space and comprising a fixing surface arranged at intervals with the first shell, and The optical sensor is arranged between the first substrate and the first shell and comprises a substrate and an optical sensor body, the substrate is fixed on the fixing surface, and the optical sensor body is arranged on one side of the substrate, close to the first shell, and is provided with a sensing surface which is away from the substrate; The first shell comprises a shell body and a shading structure, wherein the shell body comprises a first surface which is opposite to the first substrate and is arranged at intervals, the first surface is provided with a first light transmitting part which is opposite to the sensing surface, and the sensing surface is configured to receive an optical signal outside the monitoring device through the first light transmitting part; The light shielding structure comprises at least two light shielding parts which are sequentially arranged on the periphery of the first light transmission part along the direction away from the first light transmission part, wherein the light shielding parts are convexly arranged on the first surface, and the heights of different light shielding parts relative to the first surface are reduced towards the direction close to the first light transmission part; The at least two light shielding parts comprise an outer light shielding part farthest from the first light transmitting part and an inner light shielding part closest to the first light transmitting part, the outer light shielding part comprises a first top surface adjacent to the first substrate and a first side surface surrounding the substrate, a first gap is formed between the first top surface and the first substrate, a second gap is formed between the first side surface and the substrate, the inner light shielding part is arranged around the outer periphery of the photosensor body and forms a third gap communicated with the sensing surface with the photosensor body, and the second gap is communicated with the third gap.
  2. 2. The optical signal based monitoring device of claim 1, wherein the optical sensor comprises two optical sensor bodies disposed at a distance, the outer light shielding portion is disposed around the two optical sensor bodies, and the inner light shielding portion is disposed around each optical sensor body.
  3. 3. The optical signal based monitoring device according to claim 1, wherein the first light transmitting portion includes a light receiving hole provided in the first surface and a first light transmitting member provided in the light receiving hole, the light receiving hole penetrating through the case body, the first light transmitting member covering one ends of the sensing surface and the third gap, the first light transmitting member and the sensing surface forming a fourth gap at an interval, the fourth gap communicating with the third gap.
  4. 4. The optical signal based monitoring device of claim 1, wherein the inner light shielding portion includes a second top surface adjacent to the substrate and connected to the first side surface, the second top surface and the substrate form the second gap therebetween, and a connection between the first side surface and the second top surface is disposed at a right angle.
  5. 5. The optical signal based monitoring device of claim 1, wherein the monitoring device further comprises: The second shell component is movably connected with one end of the first shell component and is provided with a second light-transmitting part, the first light-transmitting part and the second light-transmitting part are positioned on the same side of the monitoring device, and The luminous light source is arranged in the second shell component and is opposite to the second light-transmitting part, and the luminous light source is configured to emit light signals towards the outside of the monitoring device through the second light-transmitting part.
  6. 6. The optical signal based monitoring device of claim 5, further comprising an elastic fixing member having both ends fixed to the first housing assembly and the second housing assembly, respectively.
  7. 7. The optical signal based monitoring device of claim 1, further comprising a chip disposed within the first receiving space and a display screen, the first substrate being positioned between the chip and the optical sensor, the chip being configured to acquire the optical signal received by the optical sensor and determine physiological information of a human body from the optical signal, the display screen being configured to display the physiological information of the human body.
  8. 8. The optical signal based monitoring device of claim 7, wherein the second housing is provided with a fenestration, and the first housing assembly further comprises a second light transmissive member disposed within the fenestration, the second light transmissive member covering the display screen.
  9. 9. The optical signal based monitoring device of claim 1 wherein the first housing component is made of a black material.
  10. 10. The optical signal-based monitoring device of claim 1, wherein the monitoring device is a cerebral blood oxygen monitoring device, and wherein the optical signal is an infrared optical signal and is configured to determine cerebral blood oxygen saturation information.

Description

Monitoring device based on optical signal Technical Field The application relates to the field of human body monitoring, in particular to a monitoring device based on optical signals. Background With the development of microelectronic technology, wearable monitoring devices are widely used for monitoring physiological information of a subject, so as to determine the physical condition of the subject. Taking blood oxygen saturation information of a monitored subject as an example, in the related art, a brain blood oxygen monitoring probe can be worn at the forehead of a monitored person, near infrared light is emitted by a luminous light source, and the near infrared light is received by an optical sensor after passing through the skull, so that the brain blood oxygen saturation of the monitored person is monitored. However, the optical sensor is sensitive to light, and external light is easy to interfere with the measurement result of the optical sensor, thereby affecting the measurement accuracy of the monitoring device. Disclosure of Invention In view of the foregoing, it is necessary to provide a monitoring device based on an optical signal. The application provides a monitoring device based on an optical signal, which comprises a first shell component, a first substrate and an optical sensor. The first shell assembly comprises a first shell and a second shell fixed on the first shell, and the first shell and the second shell define a first accommodating space. The first substrate is arranged in the first accommodating space and comprises a fixing surface, and the fixing surface is arranged at intervals with the first shell. The optical sensor is arranged between the first substrate and the first shell and comprises a substrate and an optical sensor body, wherein the substrate is fixed on the fixing surface, and the optical sensor body is arranged on one side of the substrate, which is close to the first shell, and is provided with a sensing surface which is away from the substrate. The first shell comprises a shell body and a shading structure. The shell body comprises a first surface which is opposite to the first substrate and is arranged at intervals. The first surface is provided with a first light transmitting part opposite to the sensing surface. The sensing surface is configured to receive an optical signal outside the monitoring device via the first light transmitting portion. The light shielding structure extends from the first surface to the first substrate and is surrounded on the outer periphery of the light sensor. The shading structure comprises at least two shading parts which are sequentially arranged on the periphery of the first light-transmitting part along the direction away from the first light-transmitting part, the shading parts are convexly arranged on the first surface, and the heights of different shading parts relative to the first surface are reduced towards the direction close to the first light-transmitting part. The at least two light shielding portions include an outer light shielding portion farthest from the first light passing portion and an inner light shielding portion closest to the first light passing portion. The outer shading part comprises a first top surface adjacent to the first substrate and a first side surface surrounding the base. The first top surface and the first substrate are separated to form a first gap, and the first side surface and the base are separated to form a second gap. The inner shading part is arranged around the periphery of the optical sensor body and forms a third gap communicated with the sensing surface with the optical sensor body. The second gap communicates with the third gap. In some possible implementations, the photosensor includes two photosensor bodies disposed at a distance, an outer light shielding portion is disposed around the two photosensor bodies, and an inner light shielding portion is disposed around each photosensor body. In some possible implementations, the first light transmitting portion includes a light receiving hole disposed on the first surface and a first light transmitting member disposed within the light receiving hole. The light receiving hole penetrates the case body. The first light-transmitting piece covers the sensing surface and one end of the third gap. The first light-transmitting piece and the sensing surface are separated to form a fourth gap, and the fourth gap is communicated with the third gap. In some possible implementations, the inner light shield includes a second top surface adjacent to the base and connecting the first side surface. A second gap is formed between the second top surface and the substrate. The junction of first side and second top surface sets up for the right angle. In some possible implementations, the monitoring device further includes a second housing assembly and a luminescent light source. The second shell component is movably connected to one end of the first shell