WO2018176606A1 - 一种体重检测装置的预热方法及体重检测装置 - Google Patents
一种体重检测装置的预热方法及体重检测装置 Download PDFInfo
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- WO2018176606A1 WO2018176606A1 PCT/CN2017/084829 CN2017084829W WO2018176606A1 WO 2018176606 A1 WO2018176606 A1 WO 2018176606A1 CN 2017084829 W CN2017084829 W CN 2017084829W WO 2018176606 A1 WO2018176606 A1 WO 2018176606A1
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- reflected
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- detecting device
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- weight detecting
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/05—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves
- A61B5/0507—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves using microwaves or terahertz waves
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/48—Other medical applications
- A61B5/4869—Determining body composition
- A61B5/4872—Body fat
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- the invention belongs to the technical field of body weight detection, and particularly relates to a preheating method and a body weight detecting device for a body weight detecting device.
- Human body fat is an important part of the human body and has important functions and functions in the human body, such as providing energy, protecting internal organs, maintaining body temperature, and assisting in the absorption of water-soluble vitamins.
- a healthy body lies in the balance of fat in the body. The accumulation of fat is harmful to the body and causes various diseases such as diabetes, cardiovascular and cerebrovascular diseases.
- the body fat scale is to measure the body resistance through a certain safe current after the electrode piece on the surface of the scale body is in contact with the user's feet. Since the muscle contains more blood and other water, it can conduct electricity; the fat is not conductive; the weight of the muscle can be known from the current flowing. From this, it can be judged that the body fat content in the proportion of body weight.
- the present invention provides a method for preheating a weight detecting device, comprising the steps of: S10, transmitting a predetermined wavelength of transmitting microwaves in respective emission directions according to a preset interval, and after encountering the object to be measured in the transmitting direction, The reflected portion emits microwaves as reflected microwaves; S50, calculating, according to the current reflected microwaves currently reflected and the current receiving time of the current reflected microwaves, calculating the current location of the measured object to the transmitting microwave a current distance; S60, determining whether the current distance is less than a preset distance; S70, when the current distance is less than the preset distance, the heater on the weight detecting device is heated on the weight detecting device The area is preheated.
- the method further includes: S40: acquiring attribute reference data of the measured object; S41: Identify, according to the attribute reference data and the preset attribute reference data, whether the measured object is a preset living body; when the measured object is a preset living body, perform step S50; otherwise, Step S10 is performed.
- the method further includes: S30, identifying, according to the reflected microwaves reflected each time, and each receiving time of the reflected microwaves, whether the measured object approaches the weight detecting device; When the object to be measured approaches the weight detecting device, step S40 is performed; otherwise, step S10 is performed.
- the step S30 further includes: S31: recording, according to the reflected microwaves reflected each time, recording each receiving time of receiving the reflected microwaves; S32, calculating, according to each transmission time of the transmitting microwaves, a time difference between each reception time and each of the transmission times; S33, identifying whether the object to be measured is approaching the weight detecting device according to the change trend of the time difference.
- step S33 further includes: S331, when the change trend of the time difference is decreasing, identifying that the measured object approaches the weight detecting device; S332, when the change trend of the time difference is increasing, Recognizing that the measured object is away from the weight detecting device; S333, when the time difference has not changed, identifying that the position of the measured object has not changed.
- the method further includes: S20, identifying, according to the current reflected time of the reflected reflection, and the current receiving time of the reflected microwave, whether an newly added object is detected in the microwave detection range; When the newly added object is detected, step S30 is performed; otherwise, step S10 is performed.
- the step S20 further includes: S21: determining, according to the current reflected microwave that is currently reflected, and the current receiving time of the current reflected microwave, whether the current reflected microwave, the current receiving time, and the preset reflected microwave, preset The receiving time is consistent; S22, when the current reflected microwave, the current receiving time is different from the preset reflected microwave, and the preset receiving time, the newly detected object is detected in the microwave detecting range; S23, when the current reflected microwave When the current receiving time is consistent with the preset reflected microwave and the preset receiving time, it is recognized that no newly added object is detected in the microwave detecting range.
- the present invention also provides a weight detecting device, comprising: a microwave transceiver, configured to emit a predetermined wavelength of transmitting microwaves in respective emission directions according to a preset interval, and after receiving the measured object in the transmitting direction, the reflection The returning part emits the microwave as the reflected microwave; the calculating module is configured to calculate, according to the current reflected microwave that is currently reflected back, and the current receiving time of the current reflected microwave, calculate the current emission of the measured object to the transmitting microwave a current distance of the ground; a determining module, configured to determine whether the current distance is less than a preset distance; and a warm-up control module, configured to: when the current distance is less than the preset distance, the heating on the weight detecting device The device heats up the heated zone on the weight detecting device.
- a microwave transceiver configured to emit a predetermined wavelength of transmitting microwaves in respective emission directions according to a preset interval, and after receiving the measured object in the transmitting direction, the reflection The returning part emits the
- the method further includes: an obtaining module, configured to acquire attribute reference data of the measured object; and an identifying module, configured to identify, according to the attribute reference data and the preset attribute reference data, whether the measured object is a pre-measurement Set the living body.
- the identification module is further configured to identify, according to the reflected microwaves reflected each time, and each receiving time of the reflected microwaves, whether the object to be tested is approaching the weight detecting device.
- the preheating method and the body weight detecting device of the weight detecting device provided by the present invention have the following beneficial effects:
- the heater on the weight detecting device starts to warm up, and when the user stands in the weight detecting device, the warming has been completed, and the user is improved.
- the experience makes the user unaffected by the temperature of the outside environment, and continuously uses the weight detecting device to promote the user to grasp their own health status in time.
- the invention recognizes that the object to be tested is a person, and is within a preset distance, the heater on the weight detecting device starts to warm up; when the object to be tested is non-human, the test object is discarded to the weight detecting device. distance. In order to prevent the object to be measured from being non-human, the heater on the weight detecting device is preheated, thereby preventing the heater from being erroneously warmed up on the weight detecting device.
- the present invention recognizes whether or not the object to be measured is a person when it is recognized that the object to be measured is approaching the body weight detecting device; and discards the object to be measured when the object to be measured does not understand or is away from the body weight detecting device. Not only simplifies the operation of the program, but also avoids false warm-up of the weight detecting device.
- the present invention recognizes whether the newly added object is approaching the weight detecting device when the newly added object is detected; when the newly added object approaches the weight detecting device, the newly added object is identified. Whether it is a person; when the newly added object is a person, it is determined whether the current distance of the person to the body weight detecting device is within a preset distance; when the current distance of the person to the body weight detecting device is within the preset distance, the heating on the body weight detecting device The device starts to heat; thus improving the accuracy of the control conditions and preventing erroneous heating.
- FIG. 1 is a schematic flow chart of a preheating method of a body weight detecting device according to the present invention
- FIG. 2 is a schematic flow chart of a method for preheating another weight detecting device of the present invention
- FIG. 3 is a schematic flow chart of a method for preheating a weight detecting device according to another aspect of the present invention.
- step S30 is a schematic flow chart of step S30 in the present invention.
- FIG. 5 is a schematic flow chart of step S33 in the present invention.
- Figure 6 is a schematic flow chart of step S20 in the present invention.
- FIG. 7 is a schematic flow chart of a preheating method of still another weight detecting device according to the present invention.
- Figure 8 is a schematic view showing the structure of a weight detecting device of the present invention.
- Figure 9 is a schematic structural view of a weight detecting device of the present invention.
- Figure 10 is a partial structural schematic view of a weight detecting device of the present invention.
- microwave transceiver 12, identification module, 13, recording module, 14, computing module, 15, acquisition module, 16, judgment module, 17, preheat control module.
- a method for preheating a weight detecting device includes the following steps: S10, in a predetermined interval time (for example, 2S, 10S, etc.) in each transmitting direction (for example, just south A transmitting microwave of a predetermined wavelength (for example, 1 m, 0.8 m, etc.) is emitted on a direction, a southeast direction, or the like, and after the object to be measured is encountered in the transmitting direction, the reflected portion emits microwaves as reflected microwaves.
- a predetermined interval time for example, 2S, 10S, etc.
- each transmitting direction for example, just south
- a transmitting microwave of a predetermined wavelength for example, 1 m, 0.8 m, etc.
- S60 Determine whether the current distance is less than a preset distance, and the preset distance may be set to 0.6 m, 0.4 m, or the like;
- the heater on the weight detecting device preheats the heated area on the weight detecting device; the heater refers to a heating resistance wire; The heated area refers to the upper surface layer of the body weight detecting device or the standing area of the upper surface layer.
- the heater on the weight detecting device abandons the preheating of the heated area on the weight detecting device.
- the body weight detecting device comprises a body fat scale, a weight scale, etc.; the body fat scale or the weight scale is placed at a position in the room, and there is no obstacle within the body fat scale or the weight scale 0.6m, the body fat scale or The heater on the scale is off.
- a microwave transceiver mounted on a body fat scale or a weight scale emits a transmitting microwave having a wavelength of 1 m every 2S in all directions (the body fat scale or the circumferential side of the scale).
- the microwave refers to an electromagnetic wave having a frequency of 300 MHz to 300 GHz, that is, an electromagnetic wave having a wavelength of between 1 mm and 1 m, and is a general term for a decimeter wave, a centimeter wave, and a millimeter wave.
- Microwave as a kind of electromagnetic wave has wave-particle duality.
- the basic properties of microwaves usually appear as three characteristics of penetration, reflection and absorption. For glass, plastic and porcelain, the microwave is almost traversed without being absorbed. For water and food, some microwaves are absorbed to heat themselves. For metal things, some microwaves are reflected.
- a method for preheating a weight detecting device includes the following steps: S10, in a predetermined interval time (for example, 2S, 10S, etc.) in each transmitting direction (for example, positive).
- the emitted microwaves of the preset wavelength for example, 1 m, 0.8 m, etc.
- the reflected portion emits microwaves as reflected microwaves.
- the attribute reference data includes a reflected microwave amount, and a receiving time of receiving the reflected microwave; or the attribute reference data includes facial data.
- step S41 Identify, according to the attribute reference data and the preset attribute reference data, whether the measured object is a preset living body.
- step S50 is performed; otherwise, step S10 is performed.
- S60 Determine whether the current distance is less than a preset distance, and the preset distance may be set to 0.6 m, 0.4 m, or the like.
- the heater on the weight detecting device preheats the heated area on the weight detecting device; the heater refers to a heating resistance wire; The heated area refers to the upper surface layer of the body weight detecting device or the standing area of the upper surface layer.
- the heater on the weight detecting device abandons the preheating of the heated area on the weight detecting device.
- the attribute reference data of the measured object is acquired by using a microwave transceiver or a camera. Identify the pair being tested Whether the image is a preset living body (person). When the object to be tested is a person, it is judged whether the distance from the person to the body fat scale or the weight scale is within 0.5 m. When the distance between the measured object and the body fat scale or the weight scale is within 0.5m, the heater heats the heated area. When the user stands on the body fat scale or the weight scale, the preheating is completed, which improves the user experience. .
- a method for preheating a weight detecting device includes the following steps: S10, according to a preset interval time (for example, 2S, 10S, etc.)
- a transmitting microwave of a predetermined wavelength for example, 1 m, 0.8 m, etc.
- the transmitting directions for example, a south direction, a southeast direction, etc.
- step S30 Identify, according to the reflected microwaves reflected each time, and each receiving time of the reflected microwaves, whether the object to be measured is approaching the weight detecting device.
- step S40 is performed; otherwise, step S10 is performed.
- the step S30 further includes: S31: recording, according to the reflected microwaves reflected each time, each receiving time of receiving the reflected microwaves.
- the step S33 further includes: S331, when the change trend of the time difference is decreasing, identifying that the measured object approaches the weight detecting device.
- the attribute reference data includes a reflected microwave amount, and a receiving time of receiving the reflected microwave; or the attribute reference data includes facial data.
- step S41 Identify, according to the attribute reference data and the preset attribute reference data, whether the measured object is a preset living body.
- step S50 is performed; otherwise, step S10 is performed.
- S60 Determine whether the current distance is less than a preset distance, and the preset distance may be set to 0.6 m, 0.4 m. Wait.
- the heater on the weight detecting device preheats the heated area on the weight detecting device; the heater refers to a heating resistance wire; The heated area refers to the upper surface layer of the body weight detecting device or the standing area of the upper surface layer.
- the heater on the weight detecting device abandons the preheating of the heated area on the weight detecting device.
- each time the reception time of the reflected microwave is received the time difference between each reception time and each transmission time is calculated according to each transmission time of the transmitted microwave. For example, the current time difference between the current receiving time and the current transmitting time, the current time difference is smaller than the last time difference relative to the last time difference between the last receiving time and the last transmitting time, and the measured time is not changed because the transmitting location of the transmitting microwave is not measured.
- the subject is close to the body fat scale or scale. If the current time difference is greater than the previous time difference, the measured object is away from the body fat scale or the weight scale. If the current time difference is equal to the previous time difference, the distance from the measured object to the body fat scale or the weight scale does not change.
- the heater heats the heated area.
- the preheating is completed, which improves the user experience. .
- a method for preheating a weight detecting device includes the following steps: preferably, further comprising S01, in advance in each transmitting direction Pre-emitting microwaves of a preset wavelength are emitted, and after the object to be measured is encountered in the transmitting direction, the partially reflected microwave is preset as a preset reflected microwave; and the receiving time of the preset reflected microwave is taken as Preset reception time.
- a preset interval time for example, 2S, 10S, etc.
- emission microwaves of a preset wavelength for example, 1 m, 0.8 m, etc.
- respective emission directions for example, a south direction, a southeast direction, and the like
- step S20 Identify, according to the reflected microwave that is currently reflected and the current receiving time of the reflected microwave, whether an newly added object is detected in the microwave detection range. When a newly added object is detected in the microwave detection range, step S30 is performed; otherwise, step S10 is performed.
- the step S20 further includes: S21: determining, according to the current reflected microwave that is currently reflected back, and the current receiving time of the current reflected microwave, whether the current reflected microwave, the current receiving time, and the preset reflected microwave, Set the receiving time to be the same.
- step S30 Identify, according to the reflected microwaves reflected each time, and each receiving time of the reflected microwaves, whether the object to be measured is approaching the weight detecting device.
- step S40 is performed; otherwise, step S10 is performed.
- the step S30 further includes: S31: recording, according to the reflected microwaves reflected each time, each receiving time of receiving the reflected microwaves.
- the step S33 further includes: S331, when the change trend of the time difference is decreasing, identifying that the measured object approaches the weight detecting device.
- the attribute reference data includes a reflected microwave amount, and a receiving time of receiving the reflected microwave; or the attribute reference data includes facial data.
- step S41 Identify, according to the attribute reference data and the preset attribute reference data, whether the measured object is a preset living body.
- step S50 is performed; otherwise, step S10 is performed.
- S60 Determine whether the current distance is less than a preset distance, and the preset distance may be set to 0.6 m, 0.4 m, or the like.
- the heater on the weight detecting device preheats the heated area on the weight detecting device; the heater refers to a heating resistance wire; The heated area refers to the upper surface layer of the body weight detecting device or the standing area of the upper surface layer.
- the weight detection device adds The heater abandons the preheating of the heated zone on the weight detecting device.
- the preset emission microwave having a wavelength of 1 m is emitted to the peripheral side of the body fat scale or the weight scale in advance, and the received preset microwave is received and received.
- the preset receiving time of the reflected microwave is preset, and the environment of the body fat scale or the weight scale is detected to understand the surrounding environment of the body fat scale or the body fat scale, as a reference standard for identifying whether or not a newly added object is detected.
- the type of object to be measured can be identified.
- the preset receiving time and the transmission speed of the microwave the preset emission time of the transmitting microwave is preset, and the distance of the measured object to the body fat scale or the weight scale is calculated.
- the surrounding environment of the body fat scale or the weight scale is obtained by combining the type, distance, and direction of the object to be measured.
- the newly-received object appears, its current reflected microwave, current receiving time, relative to the preset reflected microwave, preset In terms of receiving time, a change has occurred.
- the newly added object When a new object is detected in the microwave detection range, it is further recognized whether the newly added object is static or dynamic. If it is dynamic, it further identifies whether the newly added object is a human. When the newly added object is a person, it is judged whether the person is within the preset distance, and when the person is within the preset distance, the body fat scale or the heater on the weight scale preheats the heated area. The preheating condition of the body fat scale or the weight scale is further improved to prevent false warming of the body fat scale or the scale.
- a weight detecting device includes: preferably, further comprising a microwave transceiver 11 mounted on a peripheral side of the weight detecting device for transmitting in advance in each transmitting direction a predetermined wavelength of the preset microwave is emitted, and after the object to be measured is encountered in the transmitting direction, the partially reflected microwave is preset as the preset reflected microwave; and the receiving time of the preset reflected microwave is used as a preset. Receive time.
- the microwave transceiver 11 is further configured to emit a preset wavelength (for example, 1 m, 0.8 m, etc.) in each of the emission directions (for example, a south direction, a southeast direction, etc.) according to a preset interval time (for example, 2S, 10S, etc.).
- a preset wavelength for example, 1 m, 0.8 m, etc.
- the microwave is emitted, and after the object to be measured is encountered in the emission direction, the reflected portion emits microwaves as reflected microwaves.
- the identification module 12 is configured to identify, according to the currently reflected reflected microwave and the current receiving time of the reflected microwave, whether an newly added object is detected in the microwave detection range.
- the identification module 12 is further configured to determine, according to the current reflected microwave currently reflected and the current receiving time of the current reflected microwave, whether the current reflected microwave, the current receiving time, and the preset reflected microwave, Set the receiving time to be the same.
- the identification module 12 is further configured to: when the current reflected microwave, the current receiving time, and the preset reflected microwave, When the preset receiving time is inconsistent, it is recognized that a new measured object appears in the microwave detection range.
- the identification module 12 is further configured to: when the current reflected microwave, the current receiving time is consistent with the preset reflected microwave, and the preset receiving time, it is recognized that the newly added measured object does not appear in the microwave detecting range.
- the identification module 12 is further configured to: when a newly added object is detected in the microwave detection range, identify the measured object according to the reflected microwave returned each time and the receiving time of the reflected microwave Whether to approach the weight detecting device.
- the method further includes: a recording module 13 configured to record each receiving time of receiving the reflected microwave according to the reflected microwaves reflected each time.
- the calculating module 14 is configured to calculate a time difference between the each receiving time and the each transmitting time according to each transmission time of the transmitting microwave.
- the identification module 12 is further configured to identify, according to the change trend of the time difference, whether the measured object is approaching the weight detecting device.
- the identification module 12 is further configured to: when the change trend of the time difference is decreasing, identify that the measured object approaches the weight detecting device.
- the identification module 12 is further configured to: when the change trend of the time difference is increasing, identify that the measured object is away from the weight detecting device.
- the identification module 12 is further configured to: when the change trend of the time difference is stable, identify that the location of the measured object has not changed.
- the obtaining module 15 is configured to acquire attribute reference data of the measured object when the measured object approaches the weight detecting device; the attribute reference data includes a reflected microwave amount, and a receiving time of receiving the reflected microwave; or The attribute reference data includes face data.
- the identification module 12 is further configured to identify, according to the attribute reference data and the preset attribute reference data, whether the measured object is a preset living body.
- the calculation module 14 is further configured to: when the measured object is a preset living body, calculate the measured object according to the current reflected microwave currently reflected and the current receiving time of the current reflected microwave The current distance to the ground where the transmitting microwave is located.
- the determining module 16 is configured to determine whether the current distance is less than a preset distance, and the preset distance may be set to 0.6 m, 0.4 m, or the like.
- the preheating control module 17 is configured to: when the current distance is less than the preset distance, the heater on the weight detecting device preheats the heated area on the weight detecting device; the heater is Heating resistor
- the heated area refers to the upper surface layer of the body weight detecting device or the standing area of the upper surface layer.
- the warm-up control module 17 is further configured to: when the current distance is greater than or equal to the preset distance, the heater on the weight detecting device abandons warming up the heated area on the weight detecting device .
- the body weight detecting device has a truncated cone shape, and the circumference of the body weight detecting device has an arc shape.
- the microwave transceiver is disposed on the circumference of the frustum-shaped body weight detecting device to increase the microwave emission angle, as shown in FIGS. 9 and 10.
- the identification module 12, the recording module 13, the calculation module 14, the acquisition module 15, the determination module 16, and the warm-up control module 17 are disposed inside the weight detecting device.
- a camera is also mounted on the weight detecting device.
- a method for preheating a weight detecting device includes the following steps: the device is turned on, and intermittently emits a certain wavelength of microwave in a certain direction (a line can be guaranteed to a certain extent) transmission);
- the device During the interruption period of the transmission, the device begins to receive and analyze the reflected microwave signal
- the absorption and reflection data of the microwave used in the present invention can be obtained through experiments. .
- the experimentally obtained data is used as raw data to compare with the environmental information at work to model and analyze the environmental information in the space.
- the reflected microwave When a moving body appears in the space, the reflected microwave will have a change in the reflection delay, thereby analyzing the motion trend and motion information of the object;
- the information in the database can be queried to obtain information about the reflection source.
- the device starts the warm-up mode.
- the electronic scale can be used just right; the frame of the electronic scale is curved, which can increase the launch angle and the receiving angle.
- a microwave of a certain wavelength is emitted, and the reflected wave is received and analyzed.
- the delay and energy ratio between reception and transmission are obtained.
- the surrounding environment is analyzed and modeled to identify the living body and movement trends in a certain space.
- the electronic scale will start the preheating mode.
- the invention relies on receiving and returning microwaves for data analysis and modeling, and realizes an intelligent system for preheating the electronic scale. Smart preheating without user intervention.
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Abstract
一种体重检测装置的预热方法，包括以下步骤：在各个发射方向上发射预设波长的发射微波，在发射方向上遇到被测对象后，反射回来的反射微波（S10）；根据当前反射回来的当前反射微波、当前接收时间，计算出被测对象当前至发射微波所处发射地的当前距离（S50）；判断当前距离是否小于预设距离（S60）；当当前距离小于预设距离时，则体重检测装置上的加热器对体重检测装置上的受热区进行预热（S70）。在当前距离位于预设距离内时，体重检测装置上的加热器开始预热，在用户站在体重检测装置时，已完成预热，提高了用户的体验，使得用户不受外界环境温度的影响，持续使用体重检测装置，促进用户及时掌握自身的健康状态。
Description
本发明属于体重检测技术领域，特别涉及体重检测装置的预热方法及体重检测装置。
随着人们生活水平的不断提高，健康问题也越来越得到重视，促进人体测量科学的发展。人们通常可以利用体重秤获取体重信息，利用体脂秤测量人体脂肪百分比、人体水分百分比、人体肌肉百分比、骨骼重量等人体成分。
人体脂肪是人体的重要组成部分，在人体内有重要的功能和作用，例如：提供能量、保护内脏、维持体温、协助水溶性维生素的吸收等。健康的身体，在于体内脂肪的平衡，脂肪过量积聚会对身体产生危害，导致各种疾病，例如：糖尿病、心脑血管疾病等。
其中，体脂秤，是利用秤体表面的电极片与用户的双脚接触后，通过一定的安全电流，测量人体电阻。由于肌肉内含有较多血液等水份，是可以导电；而脂肪不导电；从流过的电流可知肌肉的重量。由此可判断出，在体重的比例中，人体脂肪的含量。
目前，市场上有很多体重秤都没有预热功能，尤其是体脂秤，在用户利用体脂秤测量体脂时，为了测得准确的数据，其脚部与秤表面不能绝缘，需要光脚踩在体脂秤的表面。当体脂秤的表面温度过低时，会对用户的使用体验造成影响，使得用户在外界温度较低的情况下，减少体脂秤的使用次数，进而失去对用户身体健康的监控。
发明内容
本发明提供的技术方案如下：
本发明提供一种体重检测装置的预热方法，包括以下步骤：S10、按照预设间隔时间在各个发射方向上发射预设波长的发射微波，在所述发射方向上遇到被测对象后，反射回来的部分发射微波作为反射微波；S50、根据当前反射回来的当前反射微波、以及所述当前反射微波的当前接收时间，计算出所述被测对象当前至所述发射微波所处发射地的当前距离；S60、判断所述当前距离是否小于预设距离；S70、当所述当前距离小于所述预设距离时，则所述体重检测装置上的加热器对所述体重检测装置上的受热区进行预热。
进一步，在所述步骤S50之前还包括：S40、获取所述被测对象的属性参考数据；
S41、根据所述属性参考数据、以及预设属性参考数据，识别出所述被测对象是否为预设生命体；当所述被测对象为预设生命体时，则执行步骤S50；否则，执行步骤S10。
进一步，在所述步骤S50之前还包括：S30、根据每次反射回来的反射微波、以及所述反射微波的每次接收时间，识别出所述被测对象是否向体重检测装置靠近；当所述被测对象向体重检测装置靠近时，则执行步骤S40；否则，执行步骤S10。
进一步，所述步骤S30进一步包括：S31、根据每次反射回来的反射微波，记录接收到所述反射微波的每次接收时间；S32、根据所述发射微波的每次发射时间，计算出所述每次接收时间与所述每次发射时间之间的时间差；S33、根据所述时间差的变化趋势，识别出所述被测对象是否向所述体重检测装置靠近。
进一步，所述步骤S33进一步包括：S331、当所述时间差的变化趋势呈递减时，识别出所述被测对象向所述体重检测装置靠近；S332、当所述时间差的变化趋势呈递增时，识别出所述被测对象远离所述体重检测装置；S333、当所述时间差未发生变化时，识别出所述被测对象的位置未发生改变。
进一步，在所述步骤S50之前还包括：S20、根据当前反射回来的反射微波、以及所述反射微波的当前接收时间，识别出微波检测范围内是否出现新增被测对象；当微波检测范围内出现新增被测对象时，则执行步骤S30；否则，执行步骤S10。
进一步，所述步骤S20进一步包括：S21、根据当前反射回来的当前反射微波、以及所述当前反射微波的当前接收时间，判断所述当前反射微波、当前接收时间是否与预设反射微波、预设接收时间一致；S22、当所述当前反射微波、当前接收时间与预设反射微波、预设接收时间不一致时，识别出微波检测范围内出现新增被测对象；S23、当所述当前反射微波、当前接收时间与预设反射微波、预设接收时间一致时，识别出微波检测范围内没有出现新增被测对象。
本发明还提供一种体重检测装置，包括：微波收发器，用于按照预设间隔时间在各个发射方向上发射预设波长的发射微波，在所述发射方向上遇到被测对象后，反射回来的部分发射微波作为反射微波；计算模块，用于根据当前反射回来的当前反射微波、以及所述当前反射微波的当前接收时间，计算出所述被测对象当前至所述发射微波所处发射地的当前距离；判断模块，用于判断所述当前距离是否小于预设距离；预热控制模块，用于当所述当前距离小于所述预设距离时，则所述体重检测装置上的加热器对所述体重检测装置上的受热区进行预热。
进一步，还包括：获取模块，用于获取所述被测对象的属性参考数据；识别模块，用于根据所述属性参考数据、以及预设属性参考数据，识别出所述被测对象是否为预设生命体。
进一步，所述识别模块，还用于根据每次反射回来的反射微波、以及所述反射微波的每次接收时间，识别出所述被测对象是否向体重检测装置靠近。
与现有技术相比，本发明提供的体重检测装置的预热方法及体重检测装置，具有以下有益效果：
1)、本发明在被测对象至体重检测装置当前距离位于预设距离内时，体重检测装置上的加热器开始预热，在用户站在体重检测装置时，已完成预热，提高了用户的体验，使得用户不受外界环境温度的影响，持续使用体重检测装置，促进用户及时掌握自身的健康状态。
2)、本发明在识别出被测对象为人时，且处于预设距离内，体重检测装置上的加热器开始预热；当被测对象非人时，放弃检测被测对象至体重检测装置的距离。以避免被测对象非人时，体重检测装置上的加热器进行预热，从而防止体重检测装置上加热器出现错误预热。
3)、本发明在识别出被测对象向体重检测装置靠近时，识别出被测对象是否为人；在被测对象不懂或者远离体重检测装置时，放弃对被测对象的识别。不仅简化了程序运行，还避免体重检测装置出现误预热。
4)、本发明在识别出出现新增被测对象时，识别出新增被测对象是否向体重检测装置靠近；当新增被测对象向体重检测装置靠近时，识别出新增被测对象是否为人；当新增被测对象为人时，判断人至体重检测装置的当前距离是否位于预设距离内；当人至体重检测装置的当前距离位于预设距离内时，体重检测装置上的加热器开始加热；从而提高了控制条件的准确度，防止出现错误加热。
下面将以明确易懂的方式，结合附图说明优选实施方式，对一种体重检测装置的预热方法及体重检测装置的上述特性、技术特征、优点及其实现方式予以进一步说明。
图1是本发明一种体重检测装置的预热方法的流程示意图；
图2是本发明另一种体重检测装置的预热方法的流程示意图；
图3是本发明再一种体重检测装置的预热方法的流程示意图；
图4是本发明中步骤S30的流程示意图；
图5是本发明中步骤S33的流程示意图；
图6是本发明中步骤S20的流程示意图；
图7是本发明又一种体重检测装置的预热方法的流程示意图；
图8是本发明一种体重检测装置的组成结构示意图；
图9是本发明一种体重检测装置的结构示意图；
图10是本发明一种体重检测装置的部分结构示意图。
附图标号说明：
11、微波收发器，12、识别模块，13、记录模块，14、计算模块，15、获取模块，16、判断模块，17、预热控制模块。
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对照附图说明本发明的具体实施方式。显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图，并获得其他的实施方式。
为使图面简洁，各图中只示意性地表示出了与本发明相关的部分，它们并不代表其作为产品的实际结构。另外，以使图面简洁便于理解，在有些图中具有相同结构或功能的部件，仅示意性地绘示了其中的一个，或仅标出了其中的一个。在本文中，“一个”不仅表示“仅此一个”，也可以表示“多于一个”的情形。
如图1所示，根据本发明的一个实施例，一种体重检测装置的预热方法，包括以下步骤：S10、按照预设间隔时间(例如2S、10S等)在各个发射方向(例如正南方向、东南方向等)上发射预设波长(例如1m、0.8m等)的发射微波，在所述发射方向上遇到被测对象后，反射回来的部分发射微波作为反射微波。
S50、根据当前反射回来的当前反射微波、以及所述当前反射微波的当前接收时间，计算出所述被测对象当前至所述发射微波所处发射地的当前距离。
S60、判断所述当前距离是否小于预设距离，所述预设距离可以设置为0.6m、0.4m等；
S70、当所述当前距离小于所述预设距离时，则所述体重检测装置上的加热器对所述体重检测装置上的受热区进行预热；所述加热器是指加热电阻丝；所述受热区是指所述体重检测装置的上表层或位于上表层的站立区。
S80、当所述当前距离大于、等于所述预设距离时，则所述体重检测装置上的加热器放弃对所述体重检测装置上的受热区进行预热。
具体的，体重检测装置包括体脂秤、体重秤等；将体脂秤或体重秤放置在房间内的一位置处，在距离体脂秤或体重秤0.6m内没有障碍物，体脂秤或体重秤上的加热器处于关闭状态。安装在体脂秤或体重秤上的微波收发器每隔2S在各个方向上(体脂秤或体重秤的周侧方向)发射波长为1m的发射微波。
微波是指频率为300MHz～300GHz的电磁波，即波长在1毫米～1米之间的电磁波，是分米波、厘米波、毫米波的统称。微波作为一种电磁波具有波粒二象性。微波的基本性质通常呈现为穿透、反射、吸收三个特性。对于玻璃、塑料和瓷器，微波几乎是穿越而不被吸收。对于水和食物等就会吸收部分微波而使自身发热。而对金属类东西，则会反射部分微波。
如图2所示，根据本发明的又一个实施例，一种体重检测装置的预热方法，包括以下步骤：S10、按照预设间隔时间(例如2S、10S等)在各个发射方向(例如正南方向、东南方向等)上发射预设波长(例如1m、0.8m等)的发射微波，在所述发射方向上遇到被测对象后，反射回来的部分发射微波作为反射微波。
S40、获取所述被测对象的属性参考数据；所述属性参考数据包括反射微波量、接收到反射微波的接收时间；或者，所述属性参考数据包括面部数据。
S41、根据所述属性参考数据、以及预设属性参考数据，识别出所述被测对象是否为预设生命体。当所述被测对象为预设生命体时，则执行步骤S50；否则，执行步骤S10。
S50、根据当前反射回来的当前反射微波、以及所述当前反射微波的当前接收时间，计算出所述被测对象当前至所述发射微波所处发射地的当前距离。
S60、判断所述当前距离是否小于预设距离，所述预设距离可以设置为0.6m、0.4m等。
S70、当所述当前距离小于所述预设距离时，则所述体重检测装置上的加热器对所述体重检测装置上的受热区进行预热；所述加热器是指加热电阻丝；所述受热区是指所述体重检测装置的上表层或位于上表层的站立区。
S80、当所述当前距离大于、等于所述预设距离时，则所述体重检测装置上的加热器放弃对所述体重检测装置上的受热区进行预热。
具体的，利用微波收发器或摄像头获取被测对象的属性参考数据。识别出被测对
象是否为预设生命体(人)。当被测对象为人时，判断该人至体脂秤或体重秤的距离是否在0.5m内。当被测对象至体脂秤或体重秤的距离在0.5m内时，加热器对受热区进行加热，待用户站在体脂秤或体重秤上时，已完成预热，提高了用户的体验。
如图3、图4、图5所示，根据本发明的再一个实施例，一种体重检测装置的预热方法，包括以下步骤：S10、按照预设间隔时间(例如2S、10S等)在各个发射方向(例如正南方向、东南方向等)上发射预设波长(例如1m、0.8m等)的发射微波，在所述发射方向上遇到被测对象后，反射回来的部分发射微波作为反射微波。
S30、根据每次反射回来的反射微波、以及所述反射微波的每次接收时间，识别出所述被测对象是否向体重检测装置靠近。当所述被测对象向体重检测装置靠近时，则执行步骤S40；否则，执行步骤S10。
优选的，所述步骤S30进一步包括：S31、根据每次反射回来的反射微波，记录接收到所述反射微波的每次接收时间。
S32、根据所述发射微波的每次发射时间，计算出所述每次接收时间与所述每次发射时间之间的时间差。
S33、根据所述时间差的变化趋势，识别出所述被测对象是否向所述体重检测装置靠近。
优选的，所述步骤S33进一步包括：S331、当所述时间差的变化趋势呈递减时，识别出所述被测对象向所述体重检测装置靠近。
S332、当所述时间差的变化趋势呈递增时，识别出所述被测对象远离所述体重检测装置。
S333、当所述时间差的变化趋势稳定时，识别出所述被测对象的位置未发生改变。
S40、获取所述被测对象的属性参考数据；所述属性参考数据包括反射微波量、接收到反射微波的接收时间；或者，所述属性参考数据包括面部数据。
S41、根据所述属性参考数据、以及预设属性参考数据，识别出所述被测对象是否为预设生命体。当所述被测对象为预设生命体时，则执行步骤S50；否则，执行步骤S10。
S50、根据当前反射回来的当前反射微波、以及所述当前反射微波的当前接收时间，计算出所述被测对象当前至所述发射微波所处发射地的当前距离。
S60、判断所述当前距离是否小于预设距离，所述预设距离可以设置为0.6m、0.4m
等。
S70、当所述当前距离小于所述预设距离时，则所述体重检测装置上的加热器对所述体重检测装置上的受热区进行预热；所述加热器是指加热电阻丝；所述受热区是指所述体重检测装置的上表层或位于上表层的站立区。
S80、当所述当前距离大于、等于所述预设距离时，则所述体重检测装置上的加热器放弃对所述体重检测装置上的受热区进行预热。
具体的，利用每次接收到反射微波的每次接收时间，根据发射微波的每次发射时间，计算出每次接收时间与每次发射时间的时间差。例如：当前接收时间与当前发射时间的当前时间差，相对于上一次接收时间与上一次发射时间的上一次时间差来说，当前时间差小于上一次时间差，由于发射微波的发射地点没有改变，则被测对象向体脂秤或体重秤靠近。当前时间差大于上一次时间差，则被测对象远离体脂秤或体重秤。当前时间差等于上一次时间差，则被测对象至体脂秤或体重秤的距离没有发生改变。
当被测对象向体脂秤或体重秤靠近时，进一步检查被测对象至体脂秤或体重秤的距离是否在0.5m内。当被测对象至体脂秤或体重秤的距离在0.5m内时，加热器对受热区进行加热，待用户站在体脂秤或体重秤上时，已完成预热，提高了用户的体验。
如图4、图5、图6、图7所示，根据本发明的另一个实施例，一种体重检测装置的预热方法，包括以下步骤：优选的，还包括S01、预先在各个发射方向上发射预设波长的预设发射微波，在所述发射方向上遇到被测对象后，反射回来的部分预设发射微波作为预设反射微波；并将所述预设反射微波的接收时间作为预设接收时间。
S10、按照预设间隔时间(例如2S、10S等)在各个发射方向(例如正南方向、东南方向等)上发射预设波长(例如1m、0.8m等)的发射微波，在所述发射方向上遇到被测对象后，反射回来的部分发射微波作为反射微波。
S20、根据当前反射回来的反射微波、以及所述反射微波的当前接收时间，识别出微波检测范围内是否出现新增被测对象。当微波检测范围内出现新增被测对象时，则执行步骤S30；否则，执行步骤S10。
优选的，所述步骤S20进一步包括：S21、根据当前反射回来的当前反射微波、以及所述当前反射微波的当前接收时间，判断所述当前反射微波、当前接收时间是否与预设反射微波、预设接收时间一致。
S22、当所述当前反射微波、当前接收时间与预设反射微波、预设接收时间不一致时，识别出微波检测范围内出现新增被测对象。
S23、当所述当前反射微波、当前接收时间与预设反射微波、预设接收时间一致时，识别出微波检测范围内没有出现新增被测对象。
S30、根据每次反射回来的反射微波、以及所述反射微波的每次接收时间，识别出所述被测对象是否向体重检测装置靠近。当所述被测对象向体重检测装置靠近时，则执行步骤S40；否则，执行步骤S10。
优选的，所述步骤S30进一步包括：S31、根据每次反射回来的反射微波，记录接收到所述反射微波的每次接收时间。
S32、根据所述发射微波的每次发射时间，计算出所述每次接收时间与所述每次发射时间之间的时间差。
S33、根据所述时间差的变化趋势，识别出所述被测对象是否向所述体重检测装置靠近。
优选的，所述步骤S33进一步包括：S331、当所述时间差的变化趋势呈递减时，识别出所述被测对象向所述体重检测装置靠近。
S332、当所述时间差的变化趋势呈递增时，识别出所述被测对象远离所述体重检测装置。
S333、当所述时间差的变化趋势稳定时，识别出所述被测对象的位置未发生改变。
S40、获取所述被测对象的属性参考数据；所述属性参考数据包括反射微波量、接收到反射微波的接收时间；或者，所述属性参考数据包括面部数据。
S41、根据所述属性参考数据、以及预设属性参考数据，识别出所述被测对象是否为预设生命体。当所述被测对象为预设生命体时，则执行步骤S50；否则，执行步骤S10。
S50、根据当前反射回来的当前反射微波、以及所述当前反射微波的当前接收时间，计算出所述被测对象当前至所述发射微波所处发射地的当前距离。
S60、判断所述当前距离是否小于预设距离，所述预设距离可以设置为0.6m、0.4m等。
S70、当所述当前距离小于所述预设距离时，则所述体重检测装置上的加热器对所述体重检测装置上的受热区进行预热；所述加热器是指加热电阻丝；所述受热区是指所述体重检测装置的上表层或位于上表层的站立区。
S80、当所述当前距离大于、等于所述预设距离时，则所述体重检测装置上的加
热器放弃对所述体重检测装置上的受热区进行预热。
具体的，体脂秤或体重秤放置在房间的一位置处时，预先向体脂秤或体重秤四周周侧发射波长为1m的预设发射微波，利用接收到的预设反射微波，以及接收预设反射微波的预设接收时间，探测出体脂秤或体重秤所处环境，从而了解体脂秤或体脂秤的周围环境，作为识别是否出现新增被测对象的参考标准。
由于每种物体对微波的吸收能力、反射能力、穿透能力不同，可以识别出被测对象的种类。根据预设接收时间、微波的传输速度，预设发射微波的预设发射时间，计算出被测对象至体脂秤或体重秤的距离。结合被测对象的种类、距离、发射方向，得到体脂秤或体重秤的周围环境。
当微波检测范围内(体脂秤或体重秤周侧距离体脂秤或体重秤1m的范围)出现新增被测对象，其当前反射微波、当前接收时间，相对于预设反射微波、预设接收时间来说，发生了改变。
当微波检测范围内出现新增被测对象，进一步识别出新增被测对象是静态的，还是动态的。若是动态的，则进一步识别出新增被测对象是否为人。当新增被测对象为人时，判断人是否在预设距离内，人在预设距离内时，体脂秤或体重秤上加热器对受热区进行预热。进一步提高了体脂秤或体重秤的预热条件，防止体脂秤或体重秤出现错误预热。
如图8所示，根据本发明的一个实施例，一种体重检测装置，包括：优选的，还包括微波收发器11，安装在体重检测装置的周侧，用于预先在各个发射方向上发射预设波长的预设发射微波，在所述发射方向上遇到被测对象后，反射回来的部分预设发射微波作为预设反射微波；并将所述预设反射微波的接收时间作为预设接收时间。
所述微波收发器11，还用于按照预设间隔时间(例如2S、10S等)在各个发射方向(例如正南方向、东南方向等)上发射预设波长(例如1m、0.8m等)的发射微波，在所述发射方向上遇到被测对象后，反射回来的部分发射微波作为反射微波。
识别模块12，用于根据当前反射回来的反射微波、以及所述反射微波的当前接收时间，识别出微波检测范围内是否出现新增被测对象。
优选的，所述识别模块12，还用于根据当前反射回来的当前反射微波、以及所述当前反射微波的当前接收时间，判断所述当前反射微波、当前接收时间是否与预设反射微波、预设接收时间一致。
所述识别模块12，还用于当所述当前反射微波、当前接收时间与预设反射微波、
预设接收时间不一致时，识别出微波检测范围内出现新增被测对象。
所述识别模块12，还用于当所述当前反射微波、当前接收时间与预设反射微波、预设接收时间一致时，识别出微波检测范围内没有出现新增被测对象。
所述识别模块12，还用于当微波检测范围内出现新增被测对象时，则根据每次反射回来的反射微波、以及所述反射微波的每次接收时间，识别出所述被测对象是否向体重检测装置靠近。
优选的，还包括：记录模块13，用于根据每次反射回来的反射微波，记录接收到所述反射微波的每次接收时间。
计算模块14，用于根据所述发射微波的每次发射时间，计算出所述每次接收时间与所述每次发射时间之间的时间差。
所述识别模块12，还用于根据所述时间差的变化趋势，识别出所述被测对象是否向所述体重检测装置靠近。
优选的，所述识别模块12，还用于当所述时间差的变化趋势呈递减时，识别出所述被测对象向所述体重检测装置靠近。
所述识别模块12，还用于当所述时间差的变化趋势呈递增时，识别出所述被测对象远离所述体重检测装置。
所述识别模块12，还用于当所述时间差的变化趋势稳定时，识别出所述被测对象的位置未发生改变。
获取模块15，用于当所述被测对象向体重检测装置靠近时，则获取所述被测对象的属性参考数据；所述属性参考数据包括反射微波量、接收到反射微波的接收时间；或者，所述属性参考数据包括面部数据。
所述识别模块12，还用于根据所述属性参考数据、以及预设属性参考数据，识别出所述被测对象是否为预设生命体。
所述计算模块14，还用于当所述被测对象为预设生命体时，则根据当前反射回来的当前反射微波、以及所述当前反射微波的当前接收时间，计算出所述被测对象当前至所述发射微波所处发射地的当前距离。
判断模块16，用于判断所述当前距离是否小于预设距离，所述预设距离可以设置为0.6m、0.4m等。
预热控制模块17，用于当所述当前距离小于所述预设距离时，则所述体重检测装置上的加热器对所述体重检测装置上的受热区进行预热；所述加热器是指加热电阻
丝；所述受热区是指所述体重检测装置的上表层或位于上表层的站立区。
所述预热控制模块17，还用于当所述当前距离大于、等于所述预设距离时，则所述体重检测装置上的加热器放弃对所述体重检测装置上的受热区进行预热。
具体的，体重检测装置呈锥台状，体重检测装置的周侧呈圆弧状。所述微波收发器设置在锥台状体重检测装置的周测，以增大微波发射角度，如图9、图10所示。识别模块12、记录模块13、计算模块14、获取模块15、判断模块16、预热控制模块17设置在所述体重检测装置的内部。体重检测装置上还安装有摄像头。
根据本发明的又又一个实施例，一种体重检测装置的预热方法，包括以下步骤：设备开启工作状态，开始间断性的向某一个方向发出一定波长的微波(可在一定程度上保证直线传输)；
在发射的间断期内，设备开始接收和分析反射回来的微波信号；
由于发射到接收到反射波有一定的时延和能损，且不同物质对同一种微波的反射和吸收能力不同，故通过实验便可获取到不同距离及物质对本发明所用微波的吸收和反射数据。将实验获取到的数据作为原始数据，以便和工作时的环境信息做对比，从而建模，分析出空间内的环境信息。
当空间内出现运动体时，反射回来的微波会存在反射时延的变化，从而分析出该物体的运动趋势及运动信息；
当空间内出现生命体时，可通过查询数据库内的数据，从而得到反射源的相关信息。
将获取的数据进行分析、建模，然后进行下一步处理；
当符合人类学的运动体向电子秤运动，且运动距离达到之前设定的某一个阈值时，设备启动预热模式。
当用户走到电子秤时，刚好可以使用电子秤；电子秤的边框为弧形，可以增大发射角度及接收角度。
本发明中发出一定波长的微波，通过接收反射波，进而对其进行分析。得出接收与发射之间的时延及能量比。进而对周围环境进行分析建模，辨别出一定空间内的生命体及运动趋势，当分析出有人有想使用电子秤的时候，电子秤便开启预热模式。本发明依靠接收返回微波进行数据分析、建模，实现电子秤预加热的智能系统。无须用户操作，智能实现预热。
应当说明的是，上述实施例均可根据需要自由组合。以上所述仅是本发明的优选实
施方式，应当指出，对于本技术领域的普通技术人员来说，在不脱离本发明原理的前提下，还可以做出若干改进和润饰，这些改进和润饰也应视为本发明的保护范围。
Claims (10)
- 一种体重检测装置的预热方法，其特征在于，包括以下步骤：S10、按照预设间隔时间在各个发射方向上发射预设波长的发射微波，在所述发射方向上遇到被测对象后，反射回来的部分发射微波作为反射微波；S50、根据当前反射回来的当前反射微波、以及所述当前反射微波的当前接收时间，计算出所述被测对象当前至所述发射微波所处发射地的当前距离；S60、判断所述当前距离是否小于预设距离；S70、当所述当前距离小于所述预设距离时，则所述体重检测装置上的加热器对所述体重检测装置上的受热区进行预热。
- 如权利要求1所述的体重检测装置的预热方法，其特征在于，在所述步骤S50之前还包括：S40、获取所述被测对象的属性参考数据；S41、根据所述属性参考数据、以及预设属性参考数据，识别出所述被测对象是否为预设生命体；当所述被测对象为预设生命体时，则执行步骤S50；否则，执行步骤S10。
- 如权利要求2所述的体重检测装置的预热方法，其特征在于，在所述步骤S50之前还包括：S30、根据每次反射回来的反射微波、以及所述反射微波的每次接收时间，识别出所述被测对象是否向体重检测装置靠近；当所述被测对象向体重检测装置靠近时，则执行步骤S40；否则，执行步骤S10。
- 如权利要求3所述的体重检测装置的预热方法，其特征在于，所述步骤S30进一步包括：S31、根据每次反射回来的反射微波，记录接收到所述反射微波的每次接收时间；S32、根据所述发射微波的每次发射时间，计算出所述每次接收时间与所述每次发射时间之间的时间差；S33、根据所述时间差的变化趋势，识别出所述被测对象是否向所述体重检测装置靠近。
- 如权利要求4所述的体重检测装置的预热方法，其特征在于，所述步骤S33进一步包括：S331、当所述时间差的变化趋势呈递减时，识别出所述被测对象向所述体重检测装置靠近；S332、当所述时间差的变化趋势呈递增时，识别出所述被测对象远离所述体重检测装置；S333、当所述时间差未发生变化时，识别出所述被测对象的位置未发生改变。
- 如权利要求3～5中任意一项所述的体重检测装置的预热方法，其特征在于，在所述步骤S50之前还包括：S20、根据当前反射回来的反射微波、以及所述反射微波的当前接收时间，识别出微波检测范围内是否出现新增被测对象；当微波检测范围内出现新增被测对象时，则执行步骤S30；否则，执行步骤S10。
- 如权利要求5所述的体重检测装置的预热方法，其特征在于，所述步骤S20进一步包括：S21、根据当前反射回来的当前反射微波、以及所述当前反射微波的当前接收时间，判断所述当前反射微波、当前接收时间是否与预设反射微波、预设接收时间一致；S22、当所述当前反射微波、当前接收时间与预设反射微波、预设接收时间不一致时，识别出微波检测范围内出现新增被测对象；S23、当所述当前反射微波、当前接收时间与预设反射微波、预设接收时间一致时，识别出微波检测范围内没有出现新增被测对象。
- 一种应用在如权利要求1～7中任意一项所述的体重检测装置的预热方法的体重检测装置，其特征在于，包括：微波收发器，用于按照预设间隔时间在各个发射方向上发射预设波长的发射微波，在所述发射方向上遇到被测对象后，反射回来的部分发射微波作为反射微波；计算模块，用于根据当前反射回来的当前反射微波、以及所述当前反射微波的当前接收时间，计算出所述被测对象当前至所述发射微波所处发射地的当前距离；判断模块，用于判断所述当前距离是否小于预设距离；预热控制模块，用于当所述当前距离小于所述预设距离时，则所述体重检测装置上的加热器对所述体重检测装置上的受热区进行预热。
- 如权利要求8所述的体重检测装置，其特征在于，还包括：获取模块，用于获取所述被测对象的属性参考数据；识别模块，用于根据所述属性参考数据、以及预设属性参考数据，识别出所述被测对象是否为预设生命体。
- 如权利要求9所述的体重检测装置，其特征在于：所述识别模块，还用于根据每次反射回来的反射微波、以及所述反射微波的每次接收时间，识别出所述被测对象是否向体重检测装置靠近。
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| CN104791883A (zh) * | 2015-03-30 | 2015-07-22 | 深圳市福田区青少年科技教育协会 | 一种环保电暖器 |
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2017
- 2017-03-30 CN CN201710204027.6A patent/CN107028609A/zh active Pending
- 2017-05-18 WO PCT/CN2017/084829 patent/WO2018176606A1/zh active Application Filing
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| DE20303598U1 (de) * | 2003-02-18 | 2003-05-22 | Wan Kam Chuen | Fettmessgerät |
| WO2007048540A1 (de) * | 2005-10-27 | 2007-05-03 | Leifheit Ag | Personenwaage |
| CN104068856A (zh) * | 2014-07-16 | 2014-10-01 | 英华达（南京）科技有限公司 | 一种具有表面加热功能的体脂秤及使用方法 |
| CN105577487A (zh) * | 2014-09-15 | 2016-05-11 | 丰唐物联技术（深圳）有限公司 | 一种智能家居设备的控制方法、信息处理装置 |
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