WO2019214533A1 - 基于vr的ad患者认知能力测试系统及方法 - Google Patents

基于vr的ad患者认知能力测试系统及方法 Download PDF

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WO2019214533A1
WO2019214533A1 PCT/CN2019/085443 CN2019085443W WO2019214533A1 WO 2019214533 A1 WO2019214533 A1 WO 2019214533A1 CN 2019085443 W CN2019085443 W CN 2019085443W WO 2019214533 A1 WO2019214533 A1 WO 2019214533A1
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patient
words
test
answer
phrase
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PCT/CN2019/085443
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English (en)
French (fr)
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郑亢
王建春
游华
阙中有
陈琦
陈文�
张小光
林琅
卢立
苗成林
曹启晨
高伟明
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深圳市前海安测信息技术有限公司
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Publication of WO2019214533A1 publication Critical patent/WO2019214533A1/zh

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    • G—PHYSICS
    • G16—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR SPECIFIC APPLICATION FIELDS
    • G16H—HEALTHCARE INFORMATICS, i.e. INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR THE HANDLING OR PROCESSING OF MEDICAL OR HEALTHCARE DATA
    • G16H50/00—ICT specially adapted for medical diagnosis, medical simulation or medical data mining; ICT specially adapted for detecting, monitoring or modelling epidemics or pandemics
    • G16H50/20—ICT specially adapted for medical diagnosis, medical simulation or medical data mining; ICT specially adapted for detecting, monitoring or modelling epidemics or pandemics for computer-aided diagnosis, e.g. based on medical expert systems

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  • the invention relates to the field of elderly health care, in particular to a VR-based AD patient cognitive ability test system and method.
  • Alzheimer disease is a brain cognitive dysfunction that leads to memory, execution, visual space, language communication, abstract thinking, learning and computing.
  • Neurodegenerative disease Alzheimer's disease often occurs in old age or early age, and the risk of disease increases with age.
  • the treatment of Alzheimer's disease is generally drug treatment, anti-anxiety drugs, antidepressants, antipsychotics, nootropics, and drugs for improving cognitive function, but because of the various factors involved in the disease, it must not be a simple drug. treatment.
  • Existing drugs in the early stages of the disease, drugs can improve symptoms, can only slightly improve the quality of life of patients, and can not prevent the development of senile dementia. As the disease progresses, the patient will feel that the effective time of the drug is shortened after long-term use. Once the drug is discontinued, the patient's body will also have side effects.
  • VR Virtual Reality
  • the main object of the present invention is to provide a VR-based AD patient cognitive ability testing system and method, aiming at solving the technical problem that the prior art cannot test the cognitive ability of Alzheimer's patients through the technical means of VR.
  • the present invention provides a VR-based AD patient cognitive ability testing system running in a wearable device, the VR-based AD patient cognitive ability testing system comprising a plurality of computer program instructions,
  • the wearable device includes a virtual reality device, a microprocessor adapted to implement computer program instructions, and a memory adapted to store computer program instructions and a test database, the test database storing test phrases, the computer program instructions being microprocessor Load and perform the following steps:
  • Words in the test phrase are sequentially presented on the virtual reality device according to a preset time period
  • the number of words that the patient did not remember in the current test of the patient was calculated based on the set of answer words.
  • microprocessor also loads and performs the following steps:
  • the test was performed three times according to the above procedure, and the average value of the number of words that the patient did not remember in the three tests was calculated, and the average value was determined as the patient's cognitive score.
  • the step of calculating, according to the answer word group, the number of words that the patient does not remember in the current test of the patient specifically includes:
  • the patient When the answer word is included in the test word, the patient remembers the number of words plus one until all the answer words in the answer phrase are matched;
  • test phrase includes 10 words.
  • the step of collecting the words answered by the patient and performing the speech recognition process, and obtaining the processed answer phrase group specifically includes:
  • the words answered by the patient are converted into answer words that the microprocessor can recognize, forming a group of answer words.
  • Words in the test phrase are sequentially presented on the virtual reality device according to a preset time period
  • the number of words that the patient did not remember in the current test of the patient was calculated based on the set of answer words.
  • the method further includes the steps of:
  • the test was performed three times according to the above procedure, and the average value of the number of words that the patient did not remember in the three tests was calculated, and the average value was determined as the patient's cognitive score.
  • the step of calculating, according to the answer word group, the number of words that the patient does not remember in the current test of the patient specifically includes:
  • the patient When the answer word is included in the test word, the patient remembers the number of words plus one until all the answer words in the answer phrase are matched;
  • test phrase includes 10 words.
  • the step of collecting the words answered by the patient and performing the speech recognition process, and obtaining the processed answer phrase group specifically includes:
  • the words answered by the patient are converted into answer words that the microprocessor can recognize, forming a group of answer words.
  • the VR-based AD patient cognitive ability testing system and method of the present invention adopts the above technical solutions, and achieves the following technical effects: by sequentially presenting words in the test phrase on the virtual reality device and prompting the patient The word is read to enhance the patient's memory of the test words. When the words in the test phrase are finished, the patient is prompted to answer the previously remembered words, the words answered by the patient are collected, and the speech recognition process is performed to obtain the processed answer phrase group.
  • FIG. 1 is a schematic diagram of an application environment of a preferred embodiment of a VR-based AD patient cognitive ability testing system according to the present invention
  • FIG. 2 is a flow chart of a preferred embodiment of a flow chart of a preferred embodiment of a VR-based AD patient cognitive ability testing method of the present invention.
  • FIG. 1 is a schematic diagram of an application environment of a preferred embodiment of a VR-based AD patient cognitive ability testing system according to the present invention.
  • the VR-based AD patient cognitive ability testing system 10 is installed and operates in the wearable device 1.
  • the wearable device 1 includes, but is not limited to, the virtual reality device 11 and the virtual reality glasses 12 .
  • the virtual reality device 11, the virtual reality glasses 12, the voice broadcaster 13, the voice input device 14, and the memory 15 are all electrically connected to the microprocessor 16 via a data bus, and can pass the microprocessor 16 and the VR-based AD.
  • the patient cognitive ability testing system 10 performs information interaction.
  • the wearable device 1 may further include a wearing body (not shown in FIG. 1 ), which may be a hat or a helmet, and the wearable device 1 may also be independently fabricated into a helmet style. Independent product.
  • the virtual reality device 11 , the memory 15 and the microprocessor 16 are both disposed inside the wearing body, the virtual reality glasses 12 are disposed on the front side of the wearing body near the position of the human eye glasses, and the voice broadcaster 13 is disposed on the The two sides of the wearing body are close to the position of the human ear, and the voice input device 14 is disposed at a position where the wearing body is close to the mouth of the human body.
  • the virtual reality device 11 is configured to play virtual scene information to perform memory training for a patient, and the virtual reality device 11 includes, but is not limited to, a micro image source for providing a virtual scene, a display screen for displaying a virtual scene information, and The optical module transmits the virtual scene information to the display screen, and the screen of the virtual scene information displayed on the display screen is projected onto the virtual reality glasses 12 via the optical module, and the virtual scene information is broadcasted through the voice broadcaster 13 the sound of.
  • the memory 15 may be a storage unit such as a read only memory unit ROM, an electrically erasable memory unit EEPROM or a flash memory unit FLASH.
  • the test database 150 is stored in the memory 15, and the test database 150 is used to store test phrases. .
  • the microprocessor 16 may be a central processing unit (CPU), a processor, a microcontroller (MCU), a data processing chip, or an information processing unit having a data processing function for performing the VR-based AD patient identification.
  • the ability test system 10 is used to assist patients with Alzheimer's disease in performing cognitive ability tests.
  • the VR-based AD patient cognitive ability testing system 10 includes, but is not limited to, a presentation module 101, a prompting module 102, an acquisition module 103, a test determination module 104, and a calculation module 105.
  • module refers to a series of computer program instructions that can be executed by the microprocessor 16 of the wearable device 1 and that are capable of performing a fixed function, stored in the memory 15 of the wearable device 1. . The specific functions of each module will be specifically described below with reference to FIG.
  • the invention also provides a VR-based AD patient cognitive ability test method, which is applied to the wearable device 1 worn on the head of an Alzheimer's disease patient, and plays a cognitive test on the patient by playing a test phrase.
  • FIG. 2 is a flow chart of a preferred embodiment of the VR-based AD patient cognitive ability testing method of the present invention.
  • the various method steps of the VR-based AD patient cognitive ability testing method are implemented by a computer software program stored in a computer readable storage medium in the form of computer program instructions.
  • the VR-based AD patient cognitive ability testing method includes the steps of:
  • Step S21 sequentially displaying the words in the test phrase on the virtual reality device according to a preset time period.
  • the presentation module 101 sequentially presents the words in the test phrase on the virtual reality device 11 for a preset time period (for example, 2 seconds), one word at a time.
  • the test phrases include, but are not limited to, ten words, and the test phrases are stored in the test database 150. At this time, the AD patient can see the words presented on the virtual reality device 11 through the virtual reality glasses 12.
  • Step S22 prompting the AD patient to answer the words presented on the virtual reality device
  • the prompting module 102 prompts the AD patient to answer the words presented each time on the virtual reality device 11 through the voice broadcaster 13, that is, the prompting module 102 prompts the AD patient through the voice broadcaster 13.
  • the present embodiment enhances the words presented on the virtual reality device 11 by prompting the AD patient to read each time. The patient's memory of the word.
  • Step S23 prompting the patient to answer the remembered words when the presentation of the words in the test phrase ends
  • the test judging module 104 judges whether all the words in the test phrase are sequentially rendered on the virtual reality device 11, and if the words in the test phrase are ended on the virtual reality device 11, the prompting module 102 prompts the patient to answer before remembering.
  • the words that is, through steps S21 and S22, sequentially present the words in the test phrase and prompt the patient to read the words to enhance the patient's memory of the test words, and when the words in the test phrase are finished, prompt the patient to remember before answering The words, through the patient's answer, to test and judge the patient's cognitive ability.
  • Step S24 collecting the words answered by the patient and performing speech recognition processing to obtain the processed answer phrase group;
  • the collecting module 103 sequentially collects the words that the patient answers in turn through the voice input device 14 and performs voice recognition processing, and converts the words answered by the patient into answer words that the microprocessor 16 can recognize to form an answer word group. This step is accomplished using existing speech recognition techniques by converting the speech information processing into textual information that the microprocessor 16 can recognize.
  • Step S25 calculating the number of words that the patient did not remember in the current test of the patient according to the answer word group.
  • the step of calculating the cognitive score of the patient according to the answer word group specifically includes:
  • the calculation module 105 assumes that the patient remembers that the number of words has an initial value of 0;
  • the test judging module 104 sequentially searches for the matching in the test phrase of the test database by using the answer word in the answer word group as a keyword, and determines whether the answer word is included in the test phrase;
  • the patient When the answer word is included in the test word, the patient remembers the number of words plus one until all the answer words in the answer phrase are matched;
  • step S26 the words in the test array are tested three times according to the above steps, and the average value of the number of words not remembered by the patient in the three tests is calculated, and the average value is determined as the cognitive score of the patient.
  • the calculation module 105 calculates the number of words that the patient did not remember in the first test.
  • the calculation module 105 calculates the number N2 of the words that the patient did not remember in the second test;
  • the calculation module 105 calculates the number N3 of words that the patient did not remember in the third test.
  • the calculation module 105 calculates the average value N of the number of words that the patient has not remembered in the three tests by the formula (N1+N2+N3)/3, and outputs the average value N as the cognitive score of the AD patient.
  • the embodiment of the present invention enhances the patient's memory of the test words by sequentially presenting the words in the test phrase on the virtual reality device and prompting the patient to read the words.
  • the patient is prompted to answer the previous words.
  • Words collect the words answered by the patient and perform speech recognition processing, obtain the processed answer word group, calculate the number of words that the patient did not remember in the current test according to the answer word group, so test three times, calculate the patient in three tests
  • the average value of the number of words is used to test and judge the cognitive ability of the patient.
  • the invention is implemented, and the cognitive ability of the patient can be repeatedly tested by the technical means of VR, the labor cost is saved, and the interaction and entertainment of the test are improved.
  • the VR-based AD patient cognitive ability testing system and method of the present invention adopts the above technical solutions, and achieves the following technical effects: by sequentially presenting words in the test phrase on the virtual reality device and prompting the patient The word is read to enhance the patient's memory of the test words. When the words in the test phrase are finished, the patient is prompted to answer the previously remembered words, the words answered by the patient are collected, and the speech recognition process is performed to obtain the processed answer phrase group.

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Abstract

一种基于VR的AD患者认知能力测试系统及方法，应用在可穿戴设备（1）中，该方法包括步骤：按照预设的时间周期在虚拟现实装置（11）上依次呈现测试词组中的词语；提示患者回答在虚拟现实装置（11）上呈现的词语；当测试词组中的词语呈现结束时，提示患者回答记住的词语；采集患者回答的词语并进行语音识别处理，获得处理后的回答词语组；根据回答词语组计算患者的本次测试中患者未记住词语的数量。该方法通过VR技术手段能够反复测试患者的认知能力，节省了人力成本，提高了测试的互动性和娱乐性。

Description

基于VR的AD患者认知能力测试系统及方法 技术领域
本发明涉及老年健康护理领域，尤其涉及一种基于VR的AD患者认知能力测试系统及方法。
 背景技术
阿尔茨海默症（Alzheimer disease，AD，又称“老年痴呆症”）是一种会导致记忆力、执行力、视觉空间、语言交流、抽象思维、学习和计算等多方面大脑认知功能障碍的神经退行性疾病。老年痴呆症常发生在老年期或者老年前期，患病风险随着年龄增长而增加。目前老年痴呆症的治疗一般都是药物治疗，抗焦虑药、抗抑郁药、抗精神药、益智药以及改善认知功能的药等，但由于发病因素的涉及多方面，绝不能单纯的药物治疗。现有的药物，病情初期，药物可以改善症状，只能略微改善患者生活质量，无法阻止老年痴呆的发展。随病情发展，长期服用后患者就会感到药物有效时间缩短，一旦停药病情会加重，对患者的身体也会产生副作用。
近年来，虚拟现实（Virtual Reality，VR）技术的快速发展，使得将VR技术应用于辅助阿尔茨海默症患者进行认知能力测试成为一种可能。因此，有必要提供一种用于辅助阿尔茨海默症患者认知能力测试系统及方法，来帮助患者进行认知能力测试，从而了解AD患者的认知能力。
 技术问题
本发明的主要目的在于提供一种基于VR的AD患者认知能力测试系统及方法，旨在解决现有技术不能通过VR的技术手段测试阿尔茨海默症患者认知能力的技术问题。
 技术解决方案
为实现上述目的，本发明提供了一种基于VR的AD患者认知能力测试系统，运行于可穿戴设备中，所述基于VR的AD患者认知能力测试系统包括多条计算机程序指令，所述可穿戴设备包括虚拟现实装置、适于实现计算机程序指令的微处理器以及适于存储计算机程序指令和测试数据库的存储器，所述测试数据库中存储有测试词组，所述计算机程序指令由微处理器加载并执行如下步骤：
按照预设的时间周期在虚拟现实装置上依次呈现测试词组中的词语；
提示患者回答在虚拟现实装置上呈现的词语；
当测试词组中的词语呈现结束时，提示患者回答记住的词语；
采集患者回答的词语并进行语音识别处理，获得处理后的回答词语组；
根据所述回答词语组计算患者的本次测试中患者未记住词语的数量。
进一步地，所述微处理器还加载并执行如下步骤：
按照上述步骤测试三次，计算三次测试中患者未记住词语的数量的平均值，该平均值确定为患者的认知分数。
进一步地，所述根据所述回答词语组计算患者的本次测试中患者未记住词语的数量的步骤具体包括：
假设患者记住词语的数量初始值为0；
依次以所述回答词语组中的回答词语为关键词，在测试数据库的测试词组中查找匹配，判断该回答词语是否包含于测试词组中；
当该回答词语包含于测试词语中时，患者记住词语的数量加1，直到将所述回答词组中的回答词语全部匹配完毕；
计算本次测试中患者未记住词语的数量。
进一步地，所述测试词组包括10个词语。
进一步地，所述采集患者回答的词语并进行语音识别处理，获得处理后的回答词语组的步骤具体包括：
依次采集的患者每次回答的词语并进行语音识别处理；
将患者回答的词语转化为微处理器能够识别的回答词语，形成回答词语组。
本发明另一方面还提供了一种基于VR的AD患者认知能力测试方法，应用于可穿戴设备中，所述可穿戴设备包括虚拟现实装置、微处理器以及存储器，所述存储器中存储有测试数据库，所述测试数据库中存储有测试词组，该方法包括步骤：
按照预设的时间周期在虚拟现实装置上依次呈现测试词组中的词语；
提示患者回答在虚拟现实装置上呈现的词语；
当测试词组中的词语呈现结束时，提示患者回答记住的词语；
采集患者回答的词语并进行语音识别处理，获得处理后的回答词语组；
根据所述回答词语组计算患者的本次测试中患者未记住词语的数量。
进一步地，该方法还包括步骤：
按照上述步骤测试三次，计算三次测试中患者未记住词语的数量的平均值，该平均值确定为患者的认知分数。
进一步地，所述根据所述回答词语组计算患者的本次测试中患者未记住词语的数量的步骤具体包括：
假设患者记住词语的数量初始值为0；
依次以所述回答词语组中的回答词语为关键词，在测试数据库的测试词组中查找匹配，判断该回答词语是否包含于测试词组中；
当该回答词语包含于测试词语中时，患者记住词语的数量加1，直到将所述回答词组中的回答词语全部匹配完毕；
计算本次测试中患者未记住词语的数量。
进一步地，所述测试词组包括10个词语。
进一步地，所述采集患者回答的词语并进行语音识别处理，获得处理后的回答词语组的步骤具体包括：
依次采集的患者每次回答的词语并进行语音识别处理；
将患者回答的词语转化为微处理器能够识别的回答词语，形成回答词语组。
 有益效果
相较于现有技术，本发明所述基于VR的AD患者认知能力测试系统及方法采用上述技术方案，达到了如下技术效果：通过在虚拟现实装置上依次呈现测试词组中的词语并提示患者读出该词语以加强患者对测试词语的记忆，当测试词组中的词语呈现结束时，提示患者回答之前记住的词语，采集患者回答的词语并进行语音识别处理，获得处理后的回答词语组，根据回答词语组计算患者的本次测试中患者未记住词语的数量，如此测试三次，计算三次测试中患者未记住词语的数量的平均值来测试判断患者的认知能力，实施本发明，通过VR的技术手段能够反复测试患者的认知能力，节省了人力成本，提高了测试的互动性和娱乐性。
 附图说明
图1是本发明基于VR的AD患者认知能力测试系统优选实施例的应用环境示意图；
图2是本发明基于VR的AD患者认知能力测试方法优选实施例的流程图优选实施例的流程图。
本发明目的实现、功能特点及优点将结合实施例，参照附图做进一步说明。
 本发明的最佳实施方式
为更进一步阐述本发明为达成上述目的所采取的技术手段及功效，以下结合附图及较佳实施例，对本发明的具体实施方式、结构、特征及其功效进行详细说明。应当理解，此处所描述的具体实施例仅仅用以解释本发明，并不用于限定本发明。
参照图1所示，图1是本发明基于VR的AD患者认知能力测试系统优选实施例的应用环境示意图。在本实施例中，所述基于VR的AD患者认知能力测试系统10安装并运行于可穿戴设备1中，所述可穿戴设备1包括，但不仅限于，虚拟现实装置11、虚拟现实眼镜12、语音播报器13、语音输入装置14、存储器15以及微处理器16。虚拟现实装置11、虚拟现实眼镜12、语音播报器13、语音输入装置14、存储器15均通过数据总线与所述微处理器16电连接，并能通过微处理器16与所述基于VR的AD患者认知能力测试系统10进行信息交互。
在本实施例中，所述可穿戴设备1还可以包括穿戴本体（图1中未示出），该穿戴本体可以为帽子或头盔，所述可穿戴设备1也可以独立制作成一个头盔样式的独立产品。所述虚拟现实装置11、存储器15和微处理器16均设置于所述穿戴本体的内部，所述虚拟现实眼镜12设置于所述穿戴本体前侧靠近人体眼镜位置处，语音播报器13设置于所述穿戴本体两侧靠近人体耳朵位置处，语音输入装置14设置于所述穿戴本体靠近人体嘴巴位置处。
所述虚拟现实装置11用于播放虚拟场景信息以对患者进行记忆训练，所述虚拟现实装置11包括但不仅限于，用于提供虚拟场景的微图像源、显示虚拟场景信息的画面的显示屏和光学模块；所述微图像源将虚拟场景信息传输到显示屏上，显示屏显示的虚拟场景信息的画面经光学模块后投射到虚拟现实眼镜12上，并通过语音播报器13播报出虚拟场景信息的声音。
所述存储器15可以为一种只读存储单元ROM，电可擦写存储单元EEPROM或快闪存储单元FLASH等存储单元，测试数据库150存储于存储器15中，所述测试数据库150用于存储测试词组。
所述微处理器16可以为中央处理器（CPU）、处理器、微控制器（MCU）、数据处理芯片、或者具有数据处理功能的信息处理单元，用于执行所述基于VR的AD患者认知能力测试系统10以便辅助阿尔兹海默症患者进行认知能力测试。
所述基于VR的AD患者认知能力测试系统10包括，但不仅局限于，呈现模块101、提示模块102、采集模块103、测试判断模块104以及计算模块105。本发明所称的模块是指一种能够被所述可穿戴设备1的微处理器16执行并且能够完成固定功能的一系列计算机程序指令段，其存储在所述可穿戴设备1的存储器15中。以下结合图1具体说明每一个模块的具体功能。
本发明还提供了一种基于VR的AD患者认知能力测试方法，应用于佩戴在阿尔茨海默症患者头上的可穿戴设备1中，通过播放测试词组来对患者进行认知能力测试。
参照图2所示，图2是本发明基于VR的AD患者认知能力测试方法优选实施例的流程图。在本实施例中，所述基于VR的AD患者认知能力测试方法的各种方法步骤通过计算机软件程序来实现，该计算机软件程序以计算机程序指令的形式存储于计算机可读存储介质在本实施例中（例如存储在可穿戴设备1的存储器15中），参考图1所示，所述基于VR的AD患者认知能力测试方法包括步骤：
步骤S21，按照预设的时间周期在虚拟现实装置上依次呈现测试词组中的词语。
具体地，呈现模块101按照预设的时间周期（例如2秒）在虚拟现实装置11上依次呈现测试词组中的词语，每次呈现一个词语。在本发明具体实施例中，所述测试词组包括但不仅限于10个词语，所述测试词组存储于测试数据库150中。此时，AD患者通过虚拟现实眼镜12能够看见虚拟现实装置11上呈现的词语。
步骤S22，提示AD患者回答在虚拟现实装置上呈现的词语；
具体地，呈现模块101每次呈现完一个词语后，提示模块102通过语音播报器13提示AD患者回答在虚拟现实装置11上每次呈现的词语，即提示模块102通过语音播报器13提示AD患者通过虚拟现实眼镜12看见虚拟现实装置11上呈现的词语并读出在虚拟现实装置11上每次呈现的词语，本实施例通过提示AD患者读出每次在虚拟现实装置11上呈现的词语加强患者对该词语的记忆。
步骤S23，当测试词组中的词语呈现结束时，提示患者回答记住的词语；
具体地，测试判断模块104判断测试词组中的词语是否全部依次在虚拟现实装置11上呈现结束，若测试词组中的词语在虚拟现实装置11上呈现结束时，提示模块102提示患者回答之前记住的词语，即通过步骤S21和步骤S22，依次呈现测试词组中的词语并提示患者读出该词语以加强患者对测试词语的记忆，当测试词组中的词语呈现结束时，提示患者回答之前记住的词语，通过患者的回答，来测试判断患者的认知能力。
步骤S24，采集患者回答的词语并进行语音识别处理，获得处理后的回答词语组；
具体地，采集模块103通过语音输入装置14依次采集的患者每次回答的词语并进行语音识别处理，将患者回答的词语转化为微处理器16能够识别的回答词语，形成回答词语组。该步骤采用现有的语音识别技术完成，即将语音信息处理转换为微处理器16能够识别的文字信息。
步骤S25，根据所述回答词语组计算患者的本次测试中患者未记住词语的数量。
具体地，根据所述回答词语组计算患者的认知分数的步骤具体包括：
计算模块105假设患者记住词语的数量初始值为0；
测试判断模块104依次以所述回答词语组中的回答词语为关键词，在测试数据库的测试词组中查找匹配，判断该回答词语是否包含于测试词组中；
当该回答词语包含于测试词语中时，患者记住词语的数量加1，直到将所述回答词组中的回答词语全部匹配完毕；
计算本次测试中患者未记住词语的数量，即测试词组中词语的总数减去患者记住词语的数量；
步骤S26，测试数组中的词语按照上述步骤测试三次，计算三次测试中患者未记住词语的数量的平均值，该平均值确定为患者的认知分数。
具体地，当测试数组中的第一个词语第一次重复呈现在虚拟现实装置11上时，确定第一次测试结束，计算模块105计算出第一次测试中患者未记住词语的数量N1；当测试数组中的第一个词语第二次重复呈现在虚拟现实装置11上时，确定第二次测试结束，计算模块105计算出第二次测试中患者未记住词语的数量N2；当测试数组中的第一个词语第三次重复呈现在虚拟现实装置11上时，确定第三次测试结束，计算模块105计算出第三次测试中患者未记住词语的数量N3。计算模块105通过公式（N1+ N2+ N3）/3计算出三次测试中患者未记住词语的数量的平均值N，并输出该平均值N作为AD患者的认知分数。
本发明实施例通过在虚拟现实装置上依次呈现测试词组中的词语并提示患者读出该词语以加强患者对测试词语的记忆，当测试词组中的词语呈现结束时，提示患者回答之前记住的词语，采集患者回答的词语并进行语音识别处理，获得处理后的回答词语组，根据回答词语组计算患者的本次测试中患者未记住词语的数量，如此测试三次，计算三次测试中患者未记住词语的数量的平均值来测试判断患者的认知能力，实施本发明，通过VR的技术手段能够反复测试患者的认知能力，节省了人力成本，提高了测试的互动性和娱乐性。
以上仅为本发明的优选实施例，并非因此限制本发明的专利范围，凡是利用本发明说明书及附图内容所作的等效结构或等效功能变换，或直接或间接运用在其他相关的技术领域，均同理包括在本发明的专利保护范围内。
 工业实用性
相较于现有技术，本发明所述基于VR的AD患者认知能力测试系统及方法采用上述技术方案，达到了如下技术效果：通过在虚拟现实装置上依次呈现测试词组中的词语并提示患者读出该词语以加强患者对测试词语的记忆，当测试词组中的词语呈现结束时，提示患者回答之前记住的词语，采集患者回答的词语并进行语音识别处理，获得处理后的回答词语组，根据回答词语组计算患者的本次测试中患者未记住词语的数量，如此测试三次，计算三次测试中患者未记住词语的数量的平均值来测试判断患者的认知能力，实施本发明，通过VR的技术手段能够反复测试患者的认知能力，节省了人力成本，提高了测试的互动性和娱乐性。

Claims (10)

  1. 一种基于VR的AD患者认知能力测试系统，运行于可穿戴设备中，其特征在于，所述基于VR的AD患者认知能力测试系统包括多条计算机程序指令，所述可穿戴设备包括虚拟现实装置、适于实现计算机程序指令的微处理器以及适于存储计算机程序指令和测试数据库的存储器，所述测试数据库中存储有测试词组，所述计算机程序指令由微处理器加载并执行如下步骤：
    按照预设的时间周期在虚拟现实装置上依次呈现测试词组中的词语；
    提示患者回答在虚拟现实装置上呈现的词语；
    当测试词组中的词语呈现结束时，提示患者回答记住的词语；
    采集患者回答的词语并进行语音识别处理，获得处理后的回答词语组；
    根据所述回答词语组计算患者的本次测试中患者未记住词语的数量。
  2. 如权利要求1所述的基于VR的AD患者认知能力测试系统，其特征在于，所述微处理器还加载并执行如下步骤：
    按照上述步骤测试三次，计算三次测试中患者未记住词语的数量的平均值，该平均值确定为患者的认知分数。
  3. 如权利要求1所述的基于VR的AD患者认知能力测试系统，其特征在于，所述根据所述回答词语组计算患者的本次测试中患者未记住词语的数量的步骤具体包括：
    假设患者记住词语的数量初始值为0；
    依次以所述回答词语组中的回答词语为关键词，在测试数据库的测试词组中查找匹配，判断该回答词语是否包含于测试词组中；
    当该回答词语包含于测试词语中时，患者记住词语的数量加1，直到将所述回答词组中的回答词语全部匹配完毕；
    计算本次测试中患者未记住词语的数量。
  4. 如权利要求1所述的基于VR的AD患者认知能力测试系统，其特征在于，所述测试词组包括10个词语。
  5. 如权利要求1所述的基于VR的AD患者认知能力测试系统，其特征在于，所述采集患者回答的词语并进行语音识别处理，获得处理后的回答词语组的步骤具体包括：
    依次采集的患者每次回答的词语并进行语音识别处理；
    将患者回答的词语转化为微处理器能够识别的回答词语，形成回答词语组。
  6. 一种基于VR的AD患者认知能力测试方法，应用于可穿戴设备中，其特征在于，所述可穿戴设备包括虚拟现实装置、微处理器以及存储器，所述存储器中存储有测试数据库，所述测试数据库中存储有测试词组，该方法包括步骤：
    按照预设的时间周期在虚拟现实装置上依次呈现测试词组中的词语；
    提示患者回答在虚拟现实装置上呈现的词语；
    当测试词组中的词语呈现结束时，提示患者回答记住的词语；
    采集患者回答的词语并进行语音识别处理，获得处理后的回答词语组；
    根据所述回答词语组计算患者的本次测试中患者未记住词语的数量。
  7. 如权利要求6所述的基于VR的AD患者认知能力测试方法，其特征在于，该方法还包括步骤：
    按照上述步骤测试三次，计算三次测试中患者未记住词语的数量的平均值，该平均值确定为患者的认知分数。
  8. 如权利要求6所述的基于VR的AD患者认知能力测试方法，其特征在于，所述根据所述回答词语组计算患者的本次测试中患者未记住词语的数量的步骤具体包括：
    假设患者记住词语的数量初始值为0；
    依次以所述回答词语组中的回答词语为关键词，在测试数据库的测试词组中查找匹配，判断该回答词语是否包含于测试词组中；
    当该回答词语包含于测试词语中时，患者记住词语的数量加1，直到将所述回答词组中的回答词语全部匹配完毕；
    计算本次测试中患者未记住词语的数量。
  9. 如权利要求6所述的基于VR的AD患者认知能力测试方法，其特征在于，所述测试词组包括10个词语。
  10. 如权利要求6所述的基于VR的AD患者认知能力测试方法，其特征在于，所述采集患者回答的词语并进行语音识别处理，获得处理后的回答词语组的步骤具体包括：
    依次采集的患者每次回答的词语并进行语音识别处理；
    将患者回答的词语转化为微处理器能够识别的回答词语，形成回答词语组。
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