CN117278670A - Device and method for preventing telephone fraud - Google Patents

Abstract

The invention discloses a device and method for preventing phone fraud. Step 1. Compare the current caller number with the address book; Step 2. When it is a stranger, monitor the call content of the current caller number and convert it into corresponding text. ; Step 3. Compare with the keyword database. When the keyword reaches the set number of times, the alarm unit will issue an alarm prompt; Step 4. Automatically hang up the suspected fraud call; Step 5. Automatically dial the anti-fraud center number or user Phone numbers of loved ones. This prevents users from being scammed.

Description

Device and method for preventing phone fraud

Technical field

The invention relates to a device and method for preventing telephone fraud.

Background technique

At present, there are many phone scams, often pretending to be customer service or public prosecutors to lure, intimidate and defraud people out of money. The general public mainly relies on life experience to identify and prevent this type of phone fraud. People who lack relevant experience are prone to fall into this type of phone fraud, resulting in financial losses and even personal casualties, causing irreparable harm to society and individuals.

Contents of the invention

In response to the above problems, the present invention provides a device and method for preventing phone fraud, which relies on technical means to automatically identify phone fraud. When relevant criteria are met, the suspected fraud call will be automatically hung up, a reminder will be given to the user, and even the caller will be automatically informed. The anti-fraud center or the user’s relatives call to prevent the user from being deceived.

In order to achieve the above technical objectives and achieve the above technical effects, the present invention is implemented through the following technical solutions:

A device for preventing phone fraud, including a processor, a memory, a number comparison unit, an automatic hang-up unit, an automatic calling unit, a timing unit, an entry unit, a monitoring unit, a keyword judgment unit, and an alarm respectively connected to the processor unit, where:

The number comparison unit is used to compare the current incoming call number with the phone number in the address book of the mobile device, and send the comparison result to the processor, where: if the current incoming call number is recorded in the address book, mark the current incoming call The number is an acquaintance, otherwise, mark the current caller number as a stranger;

The automatic hang-up unit is used to automatically hang up suspected fraud calls;

The automatic calling unit is used to automatically call the number of the anti-fraud center or the number of a close relative;

The timing unit is used to set the call time for automatic calls;

The input unit is used to input the user's phone number, anti-fraud center phone number, and close relative phone number;

The monitoring unit is used to monitor the call content of the current incoming call number and convert it into corresponding text;

The keyword judgment unit compares the call content in text form with the keyword database. When the keywords appearing in the call content reach the set number of times, the alarm unit issues an alarm;

The alarm unit alerts the user through vibration and/or text;

When the current incoming call number is a stranger, the processor controls the monitoring unit to work; otherwise, the mobile device answers the incoming call normally.

Preferably, the method further includes a word segmentation unit, which segments the converted call content in text form into Chinese words, and the keyword judgment unit compares the results of the word segmentation unit with the keyword database.

Preferably, it also includes a vocabulary database maintenance unit, and the vocabulary database maintenance unit is used to maintain the keyword vocabulary database.

Preferably, the mobile device is a mobile phone.

A method to prevent phone fraud, including the following steps:

Step 1. Compare the current caller number with the phone number in the address book of the mobile device. If the current caller number is recorded in the address book, mark the current caller number as an acquaintance; otherwise, mark the current caller number as a stranger;

Step 2. When the current caller number is a stranger, monitor the call content of the current caller number and convert it into corresponding text;

Step 3. Compare the call content in text form with the keyword database. When the keywords appearing in the call content reach the set number of times, the alarm unit will issue an alarm prompt;

Step 4. When the alarm unit issues an alarm prompt, the automatic hang-up unit hangs up the suspected fraud call;

Step 5. The automatic calling unit actively dials the number of the anti-fraud center and starts timing at the same time. If the call is connected, the monitoring ends;

Step 6. If the first call to the anti-fraud center is not connected, the automatic calling unit will proactively call the user's nearest relative. If the call is answered, the monitoring will end;

Step 7. If the first call to the user's loved one's phone number does not go through, the automatic calling unit will call the anti-fraud center or the user's close relative's phone number again until the preset calling time of the timing unit is used up. Stop dialing;

Preferably, the alarm unit provides an alarm through vibration and/or text.

Preferably, the converted call content in text form is first segmented into Chinese words, and then compared with the keyword thesaurus based on the word segmentation results.

Preferably, the mobile device is a mobile phone.

The beneficial effects of the present invention are:

The invention relies on technical means to automatically identify phone fraud and gives a reminder. It relies on technical means to automatically identify phone fraud. When relevant criteria are met, the invention automatically hangs up the suspected fraud call, gives a reminder to the user, and even automatically calls the anti-fraud center. Or the user’s relatives can call to prevent the user from being deceived.

Description of the drawings

Figure 1 is a structural block diagram of a device for preventing phone fraud according to the present invention;

Figure 2 is a flow chart of a method for preventing phone fraud according to the present invention;

Figure 3 is a user entry flow chart of the present invention.

Detailed ways

The technical solution of the present invention will be described in further detail below with reference to the accompanying drawings and specific examples, so that those skilled in the art can better understand the present invention and implement it, but the examples are not intended to limit the present invention.

As shown in Figure 1, a device for preventing phone fraud includes a processor, and a memory, a number comparison unit, an automatic hang-up unit, an automatic calling unit, a timing unit, an entry unit, and a monitoring unit that are respectively connected to the processor. Keyword judgment unit and alarm unit, including:

In phone scams, scam calls are basically from unknown numbers to the user. The number comparison unit is used to compare the current incoming call number with the phone number in the address book of the mobile device (mainly mobile phone device), and send the comparison result to the processor, where: if the current incoming call is recorded in the address book number, mark the current caller number as an acquaintance, otherwise, mark the current caller number as a stranger. When the current caller number is unknown, the processor controls the monitoring unit to work. Otherwise, the mobile device answers the incoming call normally and does not perform monitoring work.

The monitoring unit is used to monitor the call content of the current incoming call number and convert it into corresponding text.

The keyword judgment unit compares the call content in text form with the keyword thesaurus. When the keywords appearing in the call content reach the set number of times, the alarm unit issues an alarm prompt. Telephone fraud has obvious word characteristics, and threatening words are often used. For this characteristic, relevant keywords can be extracted to form a maintainable keyword thesaurus. Since the forms of telephone fraud are constantly changing, the key The word database needs to be maintained according to changes. Preferably, it also includes a vocabulary database maintenance unit, and the vocabulary database maintenance unit is used to maintain the keyword database.

Speech and text segmentation formed from the call content through word segmentation units. Word segmentation unit Word segmentation can be verb,

Noun, or verb, etc. For example:

"Your bank account is involved in drug trafficking and money laundering", after the wording is: "your/bank account/is involved in/drug trafficking/money laundering";

"The bank card is your name, you are a major suspect", after segmenting the words: "The bank card/is/your/name, you/are/a major/suspect";

When the keyword database contains bank account, money laundering, drug trafficking, suspect, and bank card, the number of times the keyword appears in the above two sentences is equal to 5 times.

The automatic hang-up unit is used to automatically hang up suspected fraud calls.

The automatic calling unit is used to automatically call the anti-fraud center or the number of a close relative after automatically hanging up a suspected fraud call.

The timing unit is used to set the calling time T of the automatic calling unit.

The input unit is used to input the user's phone number, anti-fraud center phone number, and close relative phone number;

The alarm unit provides an alarm via vibration and/or text.

Preferably, it also includes a word segmentation unit that performs Chinese word segmentation on the converted call content in text form (cutting a Chinese character sequence into individual words), and the keyword judgment unit performs Chinese word segmentation based on the results of the word segmentation unit. Compare with keyword lexicon.

Correspondingly, as shown in Figure 2, a method to prevent phone fraud includes the following steps:

Step 1. Compare the current caller number with the phone number in the address book of the mobile device (mainly mobile phone device). If the current caller number is recorded in the address book, mark the current caller number as an acquaintance. Otherwise, mark the current caller. The number is for a stranger.

Step 2. When the current caller number is a stranger, monitor the call content of the current caller number and convert it into corresponding text. Otherwise, no monitoring will be performed.

Step 3: Compare the call content in text form with the keyword database. When the keywords appearing in the call content reach the set number N, and N is an integer above 10, the alarm unit will issue an alarm prompt.

Step 4. When the alarm unit issues an alarm prompt, the automatic hang-up unit hangs up the suspected fraud call;

Step 5. The automatic calling unit actively dials the number of the anti-fraud center and starts timing at the same time. If the call is connected, the monitoring ends;

Step 6. If the first call to the anti-fraud center is not connected, the automatic calling unit will proactively call the user's nearest relative. If the call is answered, the monitoring will end;

Step 7. If the first call to the user's loved one's phone number does not go through, the automatic calling unit will call the anti-fraud center or the user's close relative's phone number again until the preset calling time T of the timing unit is used up. Stop dialing and set time T to a number above 3 minutes.

Preferably, the alarm unit provides an alarm through vibration and/or text.

Preferably, the call time T preset by the timing unit is 5 minutes.

Preferably, the converted call content in text form is first segmented into Chinese words, and then compared with the keyword thesaurus based on the word segmentation results.

In the present invention, before the step of judging all members in the target conversation group, the method further includes:

Obtain access to read the information of all members in the target conversation group; and/or

Obtain permission to automatically send system messages; and/or

Get permission to automatically send announcements.

The user inputs the user's mobile phone number, anti-fraud center phone number, and user's close relative's phone number through manual entry, as shown in Figure 3.

The invention relies on technical means to automatically identify phone fraud and give reminders. When relevant criteria are met, the invention automatically hangs up suspected fraud calls and gives reminders to users. It even automatically calls the anti-fraud center or the user's relatives to prevent the user from doing so. cheated. Among them, the present invention may have false alarms, and the alarm can be cleared after confirming the false alarms.

Claims (8)

1. A device for preventing telephone fraud is characterized by comprising a processor and a plurality of control circuits respectively connected with the processor

The system comprises a memory, a number comparison unit, an automatic hang-up unit, an automatic calling unit, a timing unit, an input unit, a monitoring unit, a keyword judgment unit and an alarm unit, wherein:

the number comparison unit is used for comparing the current incoming call number with the telephone number in the address book of the mobile device and sending the comparison result to the processor, wherein: if the current incoming call number is recorded in the address book, marking the current incoming call number as an acquaintance, otherwise, marking the current incoming call number as a stranger;

the automatic hang-up unit is used for automatically hanging up suspected fraud telephones;

the automatic calling unit is used for automatically calling the telephone of the anti-fraud center or calling the parent telephone;

the timing unit is used for setting the calling time of the automatic call;

the input unit is used for inputting the telephone of the user, the telephone of the anti-fraud center and the telephone of the parent;

the monitoring unit is used for monitoring the call content of the current caller number and converting the call content into corresponding words;

the keyword judging unit compares the conversation content in the text form with the keyword word stock, and when the conversation is finished

The method comprises the steps that when keywords appearing in content reach set times, an alarm unit carries out alarm prompt;

the alarm unit alarms the user in a vibration and/or text form;

when the current incoming call number is a stranger, the processor controls the monitoring unit to work, otherwise, the monitoring unit moves

The mobile device normally answers the incoming call.

2. The telephone fraud prevention apparatus according to claim 1, further comprising a thesaurus maintenance unit for maintaining a keyword thesaurus.

3. The telephone fraud prevention apparatus of claim 1, wherein said automatic calling unit is configured to automatically and actively place a telephone call to an anti-fraud center or a user to a parent.

4. The telephony fraud prevention apparatus as recited in claim 1, wherein the automatic hang-up unit is configured to automatically and actively hang up suspected fraud telephones.

5. The telephone fraud prevention apparatus of claim 1, wherein said mobile device is a mobile phone.

6. A method for preventing telephone fraud, comprising the steps of:

step 1, comparing the current incoming call number with the telephone number in the address book of the mobile equipment, if the current incoming call number is recorded in the address book, marking the current incoming call number as an acquaintance, otherwise, marking the current incoming call number as a stranger;

step 2, when the current caller number is a stranger, monitoring the call content of the current caller number and converting the call content into corresponding characters;

step 3, comparing the conversation content in the text form with a keyword word stock, and when keywords appearing in the conversation content reach set times, carrying out alarm prompt by an alarm unit;

step 4, when the alarm unit carries out alarm prompt, the automatic hang-up unit hangs up the suspected fraud telephone;

step 5, the automatic calling unit actively dials the telephone of the anti-fraud center, and starts timing at the same time, and if the automatic calling unit is connected, the monitoring is finished;

step 6, if the telephone of the anti-fraud center is not connected for the first time, the automatic calling unit actively dials the telephone from the user to the parent, and if the telephone is connected, the monitoring is finished;

and 7, if the call from the user to the parent is not completed for the first time, the automatic calling unit dials the call from the anti-fraud center or the call from the user to the parent again, and the automatic calling unit stops dialing until the preset calling time of the timing unit is used up.

7. The telephone fraud prevention method according to claim 6, wherein said alarm unit alarms by vibration and/or text form.

8. The telephony fraud prevention method of claim 6, wherein the timing unit

The set calling time takes a number of 3 minutes or more.